Novus 4510 User manual

DIRECTORY
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page
2Getting Started
2Battery Installation
2
AC Adaptor
3Keyboard Layout
3Operation
Display
Automatic Display Shutoff
Keying in
and Entering Numbers
Correcting Mistakes
X Y Exchange
Change Sign Key
Entering"
4Performing Calculations
The Logic of Reverse Polish Notation (RPN)
One-factor calculations
Trigonometric functions
Two-factor calculations
Chain calculations with two-factor functions
Chain calculations combining one and two-factor functions
7Memory
7Error Conditions
8Appendices
Appendix A - RPN and the Stack Principle
Appendix B - Some Examples
Mathematics
Engineering
Finance
Appendix C - Operating Limits
19 Warranty
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2
Getting Started
Turn youni',r' US Math'einaiid~n'>on with the
switch the leftside ofthe calculator.
The c IRrn~i9~lly.cleared and the
dl1'!? shoW 0, If It >d()es not, check
.
t(~e~' ·[scO'rin.ecled properly.
00 ,;: balterYinstallation).
',-"c" » ,. _.:_ ,-, , .. 0;.,',',.
, ,eaHery Installation
>".' Your NOVUS Mathematician is>:powered by a
~Ii;':' !,';9.voMra
nsistor
batiery'Whi~b'should give you
about two' months of
npef<at!of\. with normal use.
The Matnemal1'blan will sho'~;'1! decimal point on
thee)(,treme!Jeft hand side',€if.f1;\e display as a
IciWhbatfer;-rndicator.,Althbwgh calculations can
stili
be made while the low-battery Indicator Is
,on, the bfltte~ ,~hould,ber~placed as soon as
'possible. Corltinued ,us6\Qn·a weak battery may
result
in inaccurat~ answe~ .• ':',
To ch,ange batteries, turn th;;'fi,achlne over, place
asmall coin
in the Ilttle slot, at the top of the battery
door
and gently p.ulI towarcj y~!:" The battery door
will slip out.
BE Sl,I E THE CHCULATOR IS
TURNED OFFE?,~ ,Plb\CING THE BATTER'
,OR CONNECl'I.NG' >CHHE' AC ADAPTOR.
Then slip the bOtto,m'of )tie.bl:l)tery door back
in
pl~ce qnd, squeez,lng GENltY on the two prongs
.' on the door, snap it back,in pJace.
'-:','."
, ,,' ,AC Adaptor
'''',~:,:, •• X6u cin Use your Math~matlcill.n on regular AC
,
.,'" '~mains)cl{frent by connectinIl'the NOVUS AC
i..', .;.adaptor'll-> thE! jack <i,\ tlil~t'\llf4%f the machine.
;l' 'BE SURE YOUR CIiI3S'~\..ATOR 18 TURNBD'OFF
.,p;, _' _', .. "- ........ , .• "~ .. ,., .. "" ".... .. __ .. ~,,!' .. ',' ... ",',' .r ....
", , BEFORE CONNECTING THE ADAPTOR.
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Keyboard Layout
Single function keys and the upper functions on
double function keys have their functions defined
in silver lettering above the key. They will be
represented in this manual by D. Lower functions
on double function keys have their functions
defined
in yellow lettering below the key. They will
be represented in this manual by parentheses.
To access lower functions, press [E]then the
desired key. If you
accidental~uch [E]when you
didn't want to, atouch of the
I.Q±J key will cancel
the effect of the
[E] key.
Operation
Display
The NOVUS Mathematician will accept and
display any positive or negative number between
0.0000001
and 99999999. Any result larger than
99999999. will result in
an overflow, indicated
by all zeros
and decimal points being displayed.
Negative numbers are represented by aminus
sign just
to the left of the number in the display.
Automatic Display Shutoff
To save battery life, the NOVUS Mathematician
automatically shuts off the display and shows all
decimal points if no key has been pressed for
approximately
35 seconds. No data has been
changed and further entries or operations will bring
back the display. To restore the
iiSPliY without
changing its contents, press the
CHS key twice.
Keying in and Entering Numbers
To enter the first number for a2-function calcula-
tion, key
in the number and press IENTI. If your
number includes adecimal point, key it
in with
the number. You do not have to key in the decimal
in whole numbers.
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4
Correcting Mistakes
If you.enter a ~rQngnumber, one t?uChof the IQI]
key will clear the error and bringbac.k the previous
number. Although
it is not necessaryto clear the
Mathematician between problems, three touches of
the
IQIl key will clear all exceptmemory. If you
make amistake after touching afunction
key, the
best way to correct )(our mistake
is to enter the
last number again and touch the@pposite function.
For example:
If you find youhavemuitiplied 12 by
6when you wanted to divide 12 by
6, <;lnter the 6
again, touch
EI (divisionis the opposite of multi-
plication) and you are back where you started
before making the mistake.
X Y Exchange
The X Y exchange
key, Ix<->yl, allows you to
exchange/he contents of the display with what
was last in the display.
Change Sign
Key, .
The ICHS!
k~y enables you \o9hangethe sign of
the number
In the display .. If the nurTlber is posi-
tive, touching ICHSlwill)na,ke it negative and vice
versa.
To enter anit!!a~lenurnber,key in the
number and touch
'H ',. .
Entering ,,-
<'~' "
The constant Pi (3J415926)canbe entered
directly by touching the
El key.
Performing Calculations
Since rnany people who us~electronic slide rules
deal with
cO[1'lplex propltill1s, N?VUS believes the
calc~latorshoUld not add to thecomplexity of the
problem.Therefore, Nevus selected the Reverse
Polish,Nbtationstack principle,which lets you do
your problems the SAMEWAY each tirne,
no mat-
terwhatthe problem. In additioJ) tbthe separate
memory, there are three locations where numbers
canb<;lkept and operated on. These locations are
called registers and
in your Mathematician these
have been combined into
an aulomatic stack.
(See Appendix Afor acomplete explanation of
the stack).
The Logic
of Reverse Polish Notation (RPN)
If you remember the following three steps, you
will quickly master your NOVUS Mathematician
and have confidence
in its answers.
1. Starling at the left and working right; key in
the next number (or the first number if this is
the beginning of anew problem).
2. Ask yourself: "Canan op~ration be per-
formed?" If yes, perform
.all operations
possible. If no, press IENTI.
3. Repeat steps 1and 2until your calculation
is complete.

·See Appendix Afor adiagram explanation of how these
work on the stack. 2 2
IENTI 2.
3 3
I±l 5.
subtracts what is in the display from what
was last
in the display.
muitiplies what is
in the display by what
was last in the display.
divides what was last
in the display by what
Is now in the display.
Touching the Fkey before touching
(sin"),
(COS") or (fan-I) wiil compute the arc sine, arc
cosine or arc tangent, respectively, of the number
in the display.
Example: Arc sine
.5 =30°
KEY IN DISPLAY SHOWS
.5 .5
[£.] .5
(sin-I) 30,
(rad) after touching the Fkey, converts number
in the display from degrees to radians.
Example: 90° =1.5707963 radians.
KEY IN DISPLAY SHOWS
90 90
[f] (rad) 1.5707963
(deg) after touching the
[f] key, converts number
in the dispiay from radians to degrees.
Two-factor calculations
To perform two-factor calculations, key in the first
number, touch
IENTI ,key in the second number
and touch the desired function
key.
l±J adds what is in the display to what was
last in the display.
Example: 2+3=
5.
KEY IN DISPLAY SHOWS
EJ
1RI
EI
5
25.
DISPLAY SHOWS KEY IN
5
[f] (X2)
Trigonometric functions
ISINIcomputes the sine of the angle in the
display:
leosl computes the cosine of the angle in
the display:
ITANIcomputes the tangent of the angle in
the display:
•DEGREES ONLY!
2 2
~ .5
lv-I computes the square root of any positive
number in the display.
(X
2)after touching the F
key, computes the
square of the number in the display.
Example:
52 = 25.
One-factor calculations
One-factor functions work directly on what
is in the display, there
is no need to press ENT
before performing the function.
[]ill* computes the natural logarithm of any
positive number in the display.
ILOG! *computes the common logarithm of any
positive number in the display.
~* computes the natural antilog of the number
in the display by raising the constant 'e'
(2.7182818) to the power
in the display.
11/xl computes the reciprocal of the number
in the display.
Example: 112 =0:5.
KEY IN DISPLAY SHOWS
5

6
Chain calculations withtwb-factor functions
The number in the display
.is' always ready to have
calculations performed
On it. Chain problems
require no forethought with
RPN! Just follow the
three steps of
RPN.
*Seeappen'dix A fora diagrafTI expl~natjon of how this
function works on the stack.
**The reason for the small variation from the absolute answer
lie.s .in that the Mat~ematicjah uses alog, a~ method of
raising to powers; I.e., Y' ~ e' Ie y. While~256 ~ 4, most
calculators will give you 3.999998 because there is simply no
8-digit number which gives4 whene is raised t6 this power.
Example: 12 +6= 2.
KEY IN DISPLAY SHOWS
12 12
00 12
6 6
[±j 2.
!Y3' raises the number in the display to the
power now
in the display.
Example: 44=256.
KEY IN DI.SPLAY SHOWS
4 4
IENTI 4.
4 4
fZ] 256.
Since taking the
Xth root of Y is the same as'
raising Yto the 1/x power, to obtain roots,
touch 11/xl before touchingG:].
Example: '\f256 =4.
KEY IN DISPLAY SHOWS
Starting atthe left, key in
the first number.
Canan operation be performed?
Yes, squaring. Perform all
operations possible.
Working left to right, key in
the next number.
Can an operatio[1 be performed?
Yes. Perform all operations
possible.
tin this case,three:
squaring, addition, square rool).
Calculation is complete.
It~~ that simple!
3
9.
25.
5.
4
16
DISPLAY SHOWS COMMENTS
2Starting at the left, key in
the first number.
2. Can an operation be performed?
No. Press lENTI
3Working left to right, key in
the next number.
6. Can an operation be performed?
Yes. Perform the operation.
4Working left to right, key in
the next n'umber.
4. Can an operation be PE?rformed?
No: (There aren't two factors to
add together yet). PresS IENTI
5Working left to right, key in
then'ext number.
20. Can an operation be performed?
Yes, Perform all operations
possible, (In this case, two:
multiplication then addition).
26. End of calculation.
4
[I] (X')
3
[£] (X')
4
IENTI
III
5
BJ
2
IENTI
3
[81
KEY IN
Chain calculations combining one and
two-factor functions L
Example:. If you have aright triangle Ce'
with side A=3and side B= 4, you 8=4
can find the third side usin the
Pythagorean theorem
A' + 8' = C.
Substituting: '1/3' + 4' = 5. .A,03
KEY IN DISPLAY SHOWS COMMENTS
Example: (2 X 3) + (4 X 5) = 26.
256
256.
4.25
3.999998"
256
IENTI
4
11/xI
[Z]
1
1
\
1
I
1
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l
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:..., "',

COMMENTS
DISPLAY SHOWS
44
[[] (X2)
16.
IMsl
16. Store the first
number in the
memory.
22
'3:
If](M+X2) 2.
Memory now contains 20.
~<:;-
(16 +22 ). Display remains
unchanged.
;.:'
33
[[] (M+X')
3.
Memory now contains 29.
(20 +32
). Display remains
unchanged.
IMRI 29. Recall what is in memory to the
display. Calculation complete.
KEY IN
Any overflow or illegai operation will cause the
NOVUS Mathematician to indicate
an error condi-
tion by displaying all zeros and decimal points.
(See AppendiX Cfor acomplete table of illegal
operations). Touching
Ic~ Iclears the error condi-
tion and lets you start
the problem ovy agTn.
Touching any key EXCEPT 1:1:El, Ej, LOG or II6.J
clears .the error condition and assumes continu-
ance of the calculation
in progress with the num-
ber in the display being equal
to zero. Memory is
not affected by the error condition. If performing
afunction would cause the contents of memory to
overflow, the error condition will be displayed and
the contents of memory will remain undisturbed.
(M+X') after touching the IIJ key, squares the
number
in the display and adds it to the
number
in memory, Dispiay remains
unchanged.
Example:
Sum of squares. 4' + 2' + 3' =29,
12 12
IMSI 12.
Memory now has 12 stored in it,
replacing what was previously
in memory. Display remains
unchanged.
66
[I] (M+)
6. Memory
now has 18 (12 +6)
stored in it. Display remains
unchanged.
33
[I] (M-) 3.
Memory now has 15 (18 -3)
stored in it. Display remains
unchanged.
IMRj 15. Recall what is in
memory to
the display. Memory remains
unchanged.
Memory
The NOVUS Mathematician has acompletely
independent memory which can be used to store
constants for later use, for storing intermediate
results or
to accumulate into memory.
IMsl stores the number in the display
in memory.
Any previously stored number is replaced
by the new number. To clear memory, enter
othen touch eMS I.
IMRI recalls the number in memory to the display.
(M+) after touchingill, touching (M+) adds the
number
in the display to the number in
memory and leaves the sum in memory.
The display remains unchanged.
(M-) after touching IIJ, touching (M-) subtracts
the number
in the display from the number
in memory and leaves the difference in
memory. The display remains unchanged.
Example: Store 12
in memory, add 6to it, subtract
3from it and then recall memory
to see what
you have.
In memory: 12 +6 - 3=15.
KEY IN DISPLAY SHOWS COMMENTS
L
•
·-
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7

8
Appendices
Appendix A ~ RPN and the Stack Principle
The NOVUS Mathematician uses RPN with three
registers calied
X, Yand Z. Aregister is an elec-
tronic element used
to store data while it is being
displayed, processed or waiting to
be processed.
They are arranged
in astack with register X on the
bottom. Regis,ter Xis the displayed register.
As numbers are keyed in, the~nto the display
(register
X). When you touch ~, the number is
duplicated into register Y. At the same time, the
contents of register
Yare transferred to registerZ
and the contents of register Zare transferred
out.o! the stack.
Performing
an arithmetic operation (+ -X +)
causes the contents of registers X and Y to be com-
bined according to the operation performed and
the results transferred to register
X. At the same
time, the contents ot register Zare transferred to
register Yand register Z
is cleared automaticaliy.
Since the memory (register
M) is not affected
by any operation other than specific memory func-
tions, it
is not part of the basic three-level stack. \
The following diagrams show what happens to the i
stack for each operation on the NOVUS Mathe-
matician: To avoid confusion between the name of
aregister
and its contents, the registers in these
diagrams are represented by capital letters
X, Y
and Z
and the contents of the registers by lower
case letters
x, yand z.

TOUCH CONTENTS ILOCATION
Z•Z
[E] Y•Y
letl X•X
m•M
TOUCH CONTENTS ILOCATION
[QJm
---c LOST
[Z]@]
Z=:C
Z
0
Y:/:Y
AFTER X
jX
TOUCHING
ANY NUMBER
FUNCTION
KEY
CONTENTS ILOCATION
TOUCH
TOUCH CONTENTS ILOCATION
~LOST
~:;:~
TOUCH CONTENTS ILOCATION
[Q]O]
[Z] .. @]
Z•Z
0Y•Y
AFTER X
jX
TOUCHING NUMBER
IENTtI
TOUCH CONTENTS ILOCATION
Z•Z
Y•Y
IMSI
XXX
m\.:M
LOST
TOUCH CONTENTS ILOCATION
---c LOST
Z::J:Z
B
Y:;:Y
::r
x
TOUCH CONTENTS ILOCATION
----I: LOST
z:;:z
:=f~
9
..
.