Wang 700A User manual

I
I
•
©WANG LABORATORIES, INC., 1970
Tewksbury, Mass. 01876
Telephone [phone]all
TWX 110 343-6769
REFEREN~E M:ANUAL
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FOREWORD
This reference manual is designed to provide the user with
abasic understanding and practical guidance
in the use of
Wang's 700A/B Electronic Calculators.
The aim has been to assist the user by presenting the most
useful technique, concept and
method for utilizing the 700 to
its best advantage.
For further information, contact your local sales office or
Wang Laboratories, Inc., 836
North Street, Tewksbury,
Massachusetts 01876.

SECTION I - INTRODUCTION
SECTION II - EXPLANATION OF KEYS
SECTION III - PROGRAMMING
SECTION IV - PROGRAM CONCEPTS
SECTION V- DECISION COMMANDS
SECTION VI - PROGRAMMING TECHNIUUES USING A TAPE CASSETTE
SECTION VII - ADDITIONAL COMMANDS NOT FOUND ON THE 700 KEYBOARD
SECTION VIII - TRIGONOMETRIC PACKAGE PROGRAM, STATISTICAL PACKAGE PROGRAM
SECTION IX - SAMPLE PROGRAMS
SECTION X- WARRANTY, SERVICE AND MAINTENANCE

Table of Contents
TABLE OF CONTENTS
SECTION I - INTRODUCTION
Introduction . . . . . . •• • • • • •••• • •••• • • • •• 1-1
••••
SECTION II - EXPLANATION OF KEYS
Modes of Operation. . . . . . . . . . . . . . . . . . . . . . . .
Run Mode . . . . . . . . . . . . . . . . . . . . . . . . . .. .
Learn Mode'. ......................... .'
Learn-Print Mode. . . . . . . . . . . . . . . . . . . . . . . . .
List-Program Mode ........................
Turning the 700 ON. ......................
Non-Programmable Key ......................
Prim e . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Program Counter and Set PC . . . . . . . . . . . . . . . . . . . .
Ste
p. . . . . . . . . . . . . . . . . . . . . . .. . . . . . . .
Verify Program .........................
Record Program . . . . . . . . . . . . . . . . . . . . . . . . .
The Display. . . . . . . . . . . . . . . . . . . . . . . . . . .
X- Register . . . . . . . . . . . . . . . . . . . . . . . . . . .
En tering aNum ber . . . . . . . . . . . . . . . . . . . . . . . .
Set Exp . . . . . . . . . . . . . . . . . . . . . . . . . . .. .
Y-Register . . . ...................... .. .
Program-Error Indicator . . . . . . . . . . . . . . . . . . . . . .
Data Storage Registers. . . . . . . . . . . . . . . . . . . . . . .
Direct Addressing . . . . . . . . . . . . . . . . . . . . . . . .
Toggle
Switches and Special Function Keys . . . . . . . . . . . . . .
S
tore Direct. . . . . . . . . . . . . . . . . . . . . . . . . . .
Recall Direct . . . . . . . . . . . . . . . . . . . . . . . . . .
Exchange Direct . . . . . . . . . . . . . . . . . . . . . . . . .
Add, Subtract, Multiply, and Divide Direct. . . . . . . . . . . . . . .
Indirect Addressing. . . . . . . . . . . . . . . .. . . . . . . . .
Indirect Keys . . . . . . . . . . . . . . . . . . . . . . . . . .
Advantages of Indirect Addressing . . . . . . . . . . . . . . . . . .
Recall Residue. .........................
Addition, Subtraction, Multiplication. . . . . . . . . . . . . . . . .
Division ..........................
.. .
Write
Commands. . . . . . . . . . . . . . . . . . . . . . . . .
Group I - Group 2. .......................
SECTION III - PROGRAMMING
Coding. ............................
Generating a Code Using Special Function Keys and Toggle Switches
Core Memory . . . . . . . . . . . . . . . . . . . . . . . . . .
Number of Registers Occupied By a Program . . . . . . . . . . . . . .
SECTION IV - PROGRAM CONCEPTS
Programming Concepts . . . . . . . . . . . . . . . . . . . . . .
Mark and Search Commands . . . . . . . . . . . . . . . . . . . .
Su brou tine . . . . . . . . . . . . . . . . . . . . . . . . . . .
Double-Level Subroutines (or a Subroutine within a Subroutine) . . . . . .
v
2-1
2-1
2-1
2-1
2-2
2-2
2-2
2-2
2-3
2-3
2-4
2-4
2-4
2-5
2-5
2-5
2-6
2-8
2-9
2-9
2-9
2-12
2-12
2-13
2-13
2-14
2-14
2-16
2-16
2-17
2-18
2-20
2-21
3-1
3-2
3-3
3-5
4-1
4-2
4-5
4-7

Table of Contents
TABLE OF CONTENTS (Continued)
SECTION V - DECISION COMMANDS
DECISIONS. .......................... 5-1
S kip if Y=X . . . . . . . . . . . . . . . . . . . . . . . . 5-1
Skip
if Y>X . . . . . . . . . . . . . . . . . . . . . . . . 5- 2
SkipifY<X 5-3
Skip
if Error . . . . . . . . . . . . . . . . . . . . . . . . 5-3
PROGRAMMING
TECHNIQUES .................. 5-4
Looping Using a Counter. . . . . . . . . . . . . . . . . . . . 5-4
Looping Without a Counter. .................. 5-6
Scanning a
Table. . . . . . . . . . . . . . . . . . . . . . . 5-8
Go .. .. . .. .. .. .. . .. .. .. . . . . . . . .. .. . .. . . .. . . . 5-9
SECTION VI - PROGRAMMING TECHNIQUES USING ATAPE CASSETTE
Tape Cassette . . . . . . . . . . . . . . . . . . . . . . . . . . 6-1
Tape Drive Operation ....................... 6-2
Machine-Error
Indicator . . . . . . . . . . . . . . . . . . . . . . 6-2
Protection of Program on Tape . . . . . . . . . . . . . . . . . . . 6-3
What
is aProgram Block? . . . . . . . . . . . . . . . . . . . . . 6-3
End Program . . . . . . . . . . . . . . . . . . . . . . . . . . 6-4
How to Learn aProgram Into Core From the Keyboard. ......... 6-5
How to Transfer aProgram From Core to Tape . . . . . . . . . . ., 6-6
How to Load aProgram From Tape into Core. ............. 6-7
Bypassing
Program Blocks . . . ... ................ 6-8
Procedure for Correcting Single Program Step. . . . . . . . . . . . . . 6-8
Procedure for Inserting Ex tra Program Steps . . . . . . . . . . . . . . 6-9
Programming Techniques Using Tape Cassette. . . . . . . . . . . . . . 6-9
Creating aMulti-Block
Tape . . . . . . . . . . . . . . . . . . . . 6-11
SECTION VII -ADDITIONAL COMMANDS NOT FOUND ON
THE 700 KEYBOARD
Pause Command . . . . . . . . . . . . . . . . . . . . . . . . . 7-1
Write Alpha Pause . . . . . . . . . . . . . . . . . . .. . . . . 7-1
Storage Commands (Direct Access to and from the V-Register) ....... 7-2
Decisions. . . . . . . .'. . . . . . . . . . . . . . . . . . . . 7-2
X-Register . . . . . . . . . . . . . . . . . . . . . . . . . 7-3
V-Register . . . . . . . . . . . . . . . . . . . . . . . . . 7-3
Shifting
Commands. . . . . . . . . . . . . . . . . . . . . . . . 7-4
SECTION VIII -TRIGONOMETRIC PACKAGE PROGRAM
STATISTICAL PACKAGE PROGRAM
Trig Pack. . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-1
Speed and Accuracy ....................... 8-2
To Load the Trig Package . . . . . . . . . . . . . . . . . . . . . 8-2
Using
the Trig Package ...................... 8-3
Program Use . . . . . . . . . . . . . . . . . . . . . . . . . . 8-4
Design of the Trig Pack . . . . . . . . . . . . . . . . . . . . . . 8-4
Statistical Package . . . . . . . . . . . . . . . . . . . . . . . .
8- 5
Assignment
of Special Operations Key for aUser's Own Subroutines. . . . . 8-6
•
VI

!'.- ",
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o
Table of Contents
TABLE OF CONTENTS (Continued)
SECTION
IX -SAMPLE PROGRAMS
Algebra
of Complex Numbers (Program) .••• • • • • ••••••••
9-1
SECTION X - WARRANTY, SERVICE AND MAINTENANCE
Warranty.
• • ••••••• • • • • • ••••••••• • •••
10-1
Post-Warranty Service Availability •••• • ••••••••• • •••
10-1
Annual Maintenance Contract.
• • • ••••• • •• • • • • • • • •
.10-1
Post-Warranty Service Call Without Maintenance Contract
• • • • • ••••
10-1
In-House Maintenance Capability • • •• • ••• • ••••••• • •10-2
APPENDIX
Typing Conventions • • • • ••••••• • ••••••• • •••A-I
Index
••••••••••••••••••••••••• • • • •A-4
..
Vll

RUN
LEARN LEARN
LIST
PRINT PROGRAM
i ,
I RELEASE II FORWARD II TAPE Rl!ADY II REWIND I
o0
PROGRAM MACHINE
ERROR ERROR
,
0000
BC 40 20 10
00
01
02 03 04 05 06 07 06 09 10
11
12 13
14 15
0
DEGREE
RADIANS
SINX
COSX
TANX
SIN-1 COS-I
TAN-
1
TO POLAR TO RECT SINHX
COSHX
TANHX
SINH-1
COSti~ TANW'
0
TO RADIANS TO DEGREES XX X X X
,.
....
,.
...
SKIP
WRITE
END
RECALL
~
,.
.....
,.
RECALL
CHANGE
{X
CLEAR LOAD
ALPHA
ALPHA
INDIR DIRECT
SIGN
X'
X PROG
IF MARK
PRIME
INDIR DIRECT
ERROR
...
•SKIP
STORE ••STORE
END VERIFY
•7B9
RETURN
WRITE
l/X
INDIR INDIR
DIRECT DIRECT
-
PROG
IF
•
PROG
Y~X
INTEGER
RECALL XXl
SKIP
Ixi
RESIDUE
INDIR
DIRECT X4 5 6
STOP
IF
GROUP
SET
X
Y=X
1
PC
-+
--
SKIP
lOx LOG,.X
1T
INDIR
DIRECT -123
IF
GROUP RECORD
Y<X
2 PROG
GO
eX
0++0
SET
SEARCH STEP
LOG.X
INDIR DIRECT +•
EXP
700A/B KEYBOARD ILLUSTRATION

Section I
Introduction
SECTION I
INTRODUCTION
•
The Wang 700 is the ultimate solution to many calculating needs. Simple or complex
calculations can be
done right at the desk. The 700 keyboard is extremely simple to
operate. Once
the fundamental operations have been mastered, programming the 700 is
easy.
The Wang 700 is aself-contained programmable electronic calculator constructed with
integrated circuits on snap-in replaceable printed circuit modules.
The 700 is composed of
three basic elements:
1. The Central Processing Unit
2. Read-Only Memory
3. Core Memory
The Central Processing Unit (CPU) is the hardware which performs the arithmetic
operations.
The Read-Only Memory guides the CPU in all its operations. In effect, the Read
Only Memory is
"the brains" of the Wang 700. It directs all arithmetic and logical operations
on the 700 and has been programmed to perform all the functions found on the 67 keys
of the 700 keyboard.
The
700 Core Memory is organized into 121 or 122 data registers; plus anixie display of
the two work registers Xand Y; 120 registers can be used for data storage or program
storage. All user programs are executed from core memory.
The trig functions are also
executed from core memory.
Section II explains
the modes of operation on the 700, as well as the five non-pro-
grammable keys; discusses
the dual nixie-type display readout and the basic arithmetic
operations; explains direct and indirect addressing
of the data storage registers; explains
the RECALL RESIDUE key
_. aunique Wang feature that makes double-precision
arithmetic asimple
operation on the 700.
The usefulness
of the Wang 700 comes from its programming capabilities. Aprogram is
simply alogical sequence of steps which the calculator can perform automatically over and
over again
on different variables. If the calculation is to be performed only once, it probably
is simple enough to do it manually on the keyboard. However, if the same calculations are
to be done repeatedly, it is beneficial to record and save the steps of the calculation in the
form
of aprogram and let the calculator perform these repeated operations. The program
is loaded into core and executed from core. Programs can also be stored on magnetic tape
for later use.
Sections III, IV,
V, VI, and VII discuss various techniques to use in programming the
Wang 700. They explain how to introduce aprogram into core memory and how to save it
for later use
on tape cassettes. Also, they explain how several parts of aprogram can share
the same
part of core memory. Section VIII discusses the TRIG functions of the Wang
1 - 1

Section I
Introduction
INTRODUCTION
700. Section IX gives an example of a 700 Program and further illustrates the concept of
indirect addressing. Section Xcontains warranty, service, and maintenance information.
An appendix
is included in this manual which covers typing conventions and contains an
index
to help the user locate with ease certain items of interest.
700A -7008
700A
700B
PROGRAM
STEPS
960
960
.REGISTERS
000-119
120-121 *(Scratch Pad Only)
2Level subroutine
Drives 701
output writer
000-119
120* (Storage Only)
5Level subroutine
Drives 701
Output writer
702 Plotter
*The 700A register 121 and the 700B register 120 may be used as scratch pads only if sub-
routine 00-00 thru 01-15 are not accessed. When these subroutines are called upon the Y
register
is automatically stored in these registers.
1-2

Section II
Explanation of Keys
o0
!lflllll I •••
0000
LEARN LIST
PRINT PROGRAM LEARN
RUN
MODES OF OPERATION
The 700 has four different modes of operation. The four lock-in switches located above the
toggle switches
on the 700 keyboard are used to put the 700 into acertain mode of
operation.
RUN MODE
The RUN MODE is used for most 700 operations. All keyboard calculations are done in
the RUN MODE.
In fact, practically all operations except introducing aprogram into core
memory from
the keyboard are performed on the 700 in the RUN MODE.
SECTION II
EXPLANATION OF KEYS
LEARN MODE
The 700 is put into LEARN MODE when aprogram is to be written into core. Every
programmable
key which is indexed while the 700 is in LEARN MODE is "learned" or
recorded in core. In LEARN MODE the Y-Register is blanked and the X-Register displays
the program
step number and the program code stored at that step.
LEARN-PRINT MODE
The LEARN-PRINT MODE and the LIST PROGRAM MODE are used only when the
output writer is available. In the LEARN-PRINT MODE,each key indexed is "learned" into
core
and is also listed Or the output writer. As each key is indexed, the program step
number and the program code of the key is listed on the output writer, giving the user a
hard copy of his program as he writes it!
2-1

Section II
Explanation of Kevs
LIST-PROGRAM MODE
When the 700 is put in the LIST-PROGRAM MODE and the GO key is depressed, it
automatically lists the program steps and program code in increments
of 100 steps until
it
encounters an END PROGRAM code. The LEARN-PRINT and LIST-PROGRAM modes
are discussed in greater detail in
the 701OUTPUT WRITER MANUAL.
TURNING THE 700 ON
The procedure for turning the 700 on consists of three steps:
1. Turn power switch ON.
2. Index PRIME to initialize the system.
3. Select mode of operation. (In most instances the RUN mode will be selected.
Depress RUN
button.)
The Wang 700 is now in RUN MODE ready to perform your calculations.
NON PROGRAMMABLE KEYS
Because of their function, there are five keys which cannot be programmed on the Wang
700.
Each of these commands is discussed briefly in this section. All of their functions and
uses will
become clear after reading the entire manual.
The five non programmable keys on the 700 are:
PRIME
DODD I
II
II
II
I
0000
00
G EJ
,,
PRIME
VERIFY
PROG
SET
PC
.
RECORD
PROG
STEP
The PRIME key initializes the 700 system and should always be depressed when the
700 is first turned on. It also performs the following operations:
1. Clears V-Register to zero.
2. Clears X-Register to zero.
3. Sets
the program counter to Step 000.
4. Resets program-error and machine-error indicators.
2-2

Section /I
Explanation of Keys
The PRIME key should be depressed when the 700 is first turned on.
NOTE
The PRIME key should not be depressed when any operation is being executed. If
the program is to be stopped during execution, the STEP key should be used. This
will
stop the program after the current step is executed. Also indexing the PRIME
key when RECORD PROGRAM or LOAD PROGRAM commands are being
executed will cause difficulty with the tape. If the PRIME key is indexed
accidentally during aRECORD PROGRAM or LOAD PROGRAM operation, the
operation will be terminated immediately. However, the tape should be
rewound
before executing any other tape operations.
PROGRAM COUNTER AND SET PC
The program counter or PC is a counter which counts from 000 to 959. It indicates which
program step
is about to be executed. At all times, it always points to the next program
step. Thus,
when the machine is performing step 108, the PC is already on step 109.
The SET
PC key allows the user to address and set the program counter with the next
three keystrokes.
SET
PC 018
This instruction sets the program counter to program step number 018. To set the program
counter requires four keystrokes: SET PC followed by three numeric keys. PRIME auto-
matically sets
the program counter to step number 000.
STEP
The STEP key allows the user to step through his program one step at atime. If the
program is running when the STEP key is indexed, the program stops at the step it is about
to execute. In the RUN MODE, depressing the STEP key will cause the 700 to perform the
next step in the program. Each time the STEP key is indexed, the next program step will be
executed.
The GO key will take
the 700 out of the stepping mode and put it in the continuous
mode executing the remaining steps in the program until aSTOP command is encountered.
NOTE
In any 2-step command such as DIRECT ADDRESSING and WRITE ALPHA
commands, the GO key should not be depressed in the middle of the 2-step
command. The entire 2-step
command should be executed in step mode before
switching to the
continuous mode.
This stepping feature is of tremendous value for debugging programs. The programmer
can step through his program and locate his difficulty immediately. By switching to LEARN
2-3

Section II
Explanation of Keys
MODE he can see the step number and the code of the operation he is about to execute.
When stepping through aprogram in LEARN MODE, the program step number (the PC) and
the program code of the operation is displayed in the X-Register. However, in LEARN
MODE the operation is not executed.
VERIFY PROGRAM
The VERIFY PROGRAM key decimally adds the high-order and low-order digits of the
program codes in core beginning
at step 000 until it encounters an END PROGRAM code.
The sum is displayed in the right-most digits of the mantissa of the X-Register.
EXAMPLE
STEP #
000
001
002
003
004
KEY
MARK
0700
x2
STOP
END PROG
CODE
0408
0700
0713
0515
0512
If this program is located in core and the VERIFY
PROGRAM key is depressed the sum displayed in
X
is 59.
04
08
07
00
07
13
05
15
-
59
After performing this operation, the PC is set at the step where the END PROGRAM
command is located. (Step 004 in this example.) Notice the code for END PROGRAM is
not added into the sum generated by the VERIFY PROGRAM key.
RECORD PROGRAM
This key transfers aprogram from core to magnetic tape. The PC is set to aspecific
step
and the program steps starting at this step are transferred to the tape until an END
PROGRAM command is reached. The END PROGRAM command is the last step trans-
ferred
to the tape. After transferring the program to tape, the PC is set to where it was
originally
set (i.e., the first program step to be transferred to the tape).
The five keys, PRIME, SET PC, VERIFY PROGRAM, RECORD PROGRAM and
STEP are
the only keys on the 700 which cannot be used in aprogram. Therefore, when
any of these keys are indexed it doesn't matter whether the machine is in LEARN or RUN
MODE.
THE DISPLAY
The display consists of two work registers, X and Y. Both the Xand YRegisters are
displayed simultaneously by easily readable half-inch nixie-type tubes. Each register has a+
sign and twelve digit mantissa followed by atwo-digit exponent with arange of -99 to +99.
2·4

+. XXXXXXXXXXXX
+. XXXXXXXXXXXX
\ I mantissa I
floating decimal
sign
of mantissa
Section /I
Explanation of Keys
+X X (Y-Register)
+X X (X-Register)
\ 'exponent
sign of exponent
For numbers in the range .1 ~ INI <1 000000000, the decimal point retains its natural
position. When a number lies outside this range, the decimal automatically relocates to the
extreme left, and the exponent of the power of lOis indicated correctly in modified
scientific notation. This property will become clear after afew minutes familiarization with
the keyboard.
(A few numbers and how they appear in the display are given below.)
X-REGISTER
The keys 0, 1, 2, ... 9and decimal point (.) are used for entering a number into the
X-Register. The SETEXP key is used to set the exponent value of X. The CH SIGN key
changes the algebraic sign of the mantissa or exponent of X.
Indexing a number into the 700 keyboard is as simple as writing the number down on
paper. The normal sequence of steps is to key in the mantissa followed by the SETEXP
key and the value of the exponent.
ENTERING A NUMBER
Index the following few numbers on the 700 keyboard. After indexing the number into
the X-Register. move it to the Y-Register by depressing the tkey.
NUMBER
SEQUENCE OF STEPS DISPLAY
a) .152 x 10
21
15 2
SETEXP 2 1 t. .152000000000 +21
-- - ---
b)
6.62517x 10 -27
6 6 2 5 1 7
SETEXP CHS 2 6 t
.662517000000-26
------
---
c) -2534.5 2 5 3 4 . 5 CHS t
------ --
Or
- 2534.50000000
2 5 3 4 5 CHS SETEXP
4t
-----
--
d)
.0075
.0075t
------
Or
+.750000000000-02
7 5 SETEXP CHS 2t
--
--
Index c and d both ways. Does the display appear differently? Notice example b. Why is 26
entered as the value of the exponent?
SET EXP
The SETEXP key is used to set the exponent value of X with the next two successive
keystrokes. The SETEXP key automatically aligns the decimal point in the left-most
position of the X-Register: however, it does not blank out the mantissa. This allows us to
change the value of the exponent of a number without having to key in the entire number
•
agam.
2-5

Section II
Explanation of Keys
EXAMPLE
Index 1.75 x10
23
Suppose the following sequence of steps is used:
1 . 7 5 SETEXP 2 3
Notice what happens to the decimal point when the SETEXP key is indexed. It is not
necessary to index the decimal point, as the SETEXP key automatically aligns it in the left
most position. The value
of the exponent will also have to be indexed correctly. If the
number is in proper scientific notation, the value of the exponent is simply increased by 1.
Thus, the correct sequence of steps would be:
CLEAR X 1 7 5 SETEXP 2 4
All numbers indexed after the SETEXP key simply changes the value of the exponent. Since
the range of the exponent is -99 to +99, normally only I or 2numbers are indexed after
the SETEXP key. However, if more than 2numbers are indexed, the exponent takes on the
value
of the last 2numbers entered.
EXAMPLE
If the following sequence of steps is performed:
1. 12SETEXP 2 3 4, the value of the exponent is 34.
2. For SETEXP CHS 3 57, the value of the exponent is -57.
3. For SETEXP 5 0 2, the value of the exponent should be 2. However, on the
display the exponent would be blanked out and the decimal point would assume
its
natural position.
The
700 will remain in the SETEXP mode until a non numeric key or the decimal point key
is depressed.
V-REGISTER
The Y-Register is another work register used in conjunction with the X-Register for basic
arithmetic operations and
data transfers. A number in the X-Register can easily be trans-
ferred
to the Y-Register by indexing the tkey or ~ tkey.
KEYSTROKE
CLEAR X
f
~
U
+
x
OPERATION
Clears X-Register
X
into Y, Xunchanged
Yinto X, Yunchanged
Xand Yexchanged
Y+Xin
to Y, Xunchanged
Y-X into Y, Xunchanged
Yx Xinto Y, Xunchanged
2-6

2-7
Step through the following examples to familiarize yourself with these keyboard
operations.
Y+X into Y, X unchanged
Absolute value of X into X, Y unchanged
Disregards decimal part of number in X and
puts integer part of number in X, Y unchanged
1/X into X, Y unchanged
x2 into X, Y unchanged
v'X into X, Y unchanged
LOG
lo
X into X, Y unchanged
lOx into X, Y unchanged
LOGeX into X, Y unchanged
eX into X, Y unchanged
rr into X, Y unchanged
Section 1/
Explanation of Keys
•
•
rr
!XI
INTX
l/X
EXAMPLE 3. Calculate 51 x 6.2 = + 62.0119219307
y'26'
1.51 t 1.51 t
2. 6 . 2 x 2. 2 6 vx +
3. 2 6-vx + 3.6 . 2 x
(Answer in Y,v126 in X) (Answer in Y, 6.2 in X)
EXAMPLE 2. Calculate (5)2 -(20)2 +
(1/15)2 +V'70 = - 366.628955291
1. CLEAR X
2. 5x2t
3.20 x2-
4. 1 5 l/x x2+
5.70 vx+ (Answer in Y,v'70 in X)
EXAMPLE 4. A=rrr
2
r=.568x 10-6= +.101355318827-11
1.5 68 SETEXP 6CHS
2. x2t
rr
3. X (Answer in Y, rr in X)
EXAMPLE 1. Calculate.083+ 17.86+32.2= +50.1430000000
1. PRIME
2.·.083~
3. 1 7. 8 6 +
4.3 2 . 2 + (Answer in Y, 32.2 in X)
vx
LOGloX
lOx
LOGeX
x
e

,
\
,
,
;i
.
•
Section II
Explanation of Keys
EXAMPLE 5. Calculate (12.8)?/3 =+ 383.256852976
1. 1 2 . 8 LOGeX 1. 1 2 . 8 LOG! 0X
2. t7x or 2.' 7x
3.3 + 3.3+
4. t eX (Answer in X) 4. ~ lOX (Answer in X)
EXAMPLE 6. Reduce t~e angle 8650 to an equivalent angle less than 360
0.
Formula 865 -INT ~865'; 360 =equivalent (145)
360 360 value
'. --/
1.
865
t
2.3 6 0 +
3. tINT (X)
4.-
5.3 6 0 x (Answer in Y, 360 in X)
EXAMPLE 7. Calculate
the following:
a. c=2T( rwhere r=.347 X 10-
5=
.21802 .. xlO-
4
b. M= 90 +87 +68 +77 =80.5
4
c. y'"M+1where M is the answer of 7(b)
y'M
Answer = 8.984 ...
Hint: Use +tkey
d. e5.3+105.7+ T(2 = 501397 .4 ...
e. Log (-. 2) What happens? Why? PRIME and find
vC3. What happens? Why?
PROGRAM-ERROR INDICATOR
There are two lights located to the right of the Special Function Keys on the 700
keyboard. These two lights are used
as error indicators. The one on the right indicates
MACHINE
ERROR; the one on the left PROGRAM ERROR. The MACHINE ERROR
INDICATOR is discussed later.
The PROGRAM ERROR INDICATOR is turned on whenever an illegal operation is
performed (i.e., taking the logarithm or square root of anegative number, or dividing by
zero). Also,
if acalculated result is greater than 10
99
,the PROGRAM ERROR INDICATOR
will be
turned on. Whenever the indicator is on, the arithmetic sign of the X-Register
also flashes.
OPERATIONS WHICH TURN PROGRAM
ERROR INDICATOR ON
Calculated result greater
than 10
99
Division by 0
y:::x
LOG! oX where x< 0
(Overflow condition)
2·8