Casio ALGEBRA FX 2.0 Plus Technical document

19990401
Appendix
1Error Message Table
2Input Ranges
3Specifications
4Index
5Key Index
6PButton (In case of hang up)
7Power Supply
α

19990401
Meaning
•Illegal syntax
•Attempt to input an illegal
command
•Calculation result exceeds the
display range.
•Calculation is outside the input
range of a function.
•Mathematical error (division by
zero, etc.)
•Sufficient precision could not be
obtained for Σcalculation,
differential calculation, etc.
•Solution could not be obtained
for equation calculation, etc.
1No corresponding Lbl nfor
Goto n.
2No program stored in program
area Prog ”file name”.
•Nesting of subroutines by Prog
”file name” exceeds 10 levels.
•Execution of calculations that
exceed the capacity of the
stack for numeric values or
stack for commands.
Message
Syntax ERROR
Ma ERROR
Go ERROR
Nesting ERROR
Stack ERROR
Countermeasure
•Press ito display the error
and make necessary correc-
tions.
•Check input values and make
corrections to ensure that
values are within allowable
limits.
1Correctly input a Lbl nto corres-
pond to the Goto n, or delete
the Goto nif not required.
2Store a program in program
area Prog ”file name”, or delete
the Prog ”file name” if not
required.
•Ensure that Prog ”file name” is
not used to return from
subroutines to main routine. If
used, delete any unnecessary
Prog ”file name”.
•Trace the subroutine jump
destinations and ensure that no
jumps are made back to the
original program area. Ensure
that returns are made correctly.
•Simplify the formulas to keep
stacks within 10 levels for the
numeric values and 26 levels
for the commands.
•Divide the formula into two or
more parts.
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Error Message Table
1Error Message Table

19990401
Meaning
Message Countermeasure
α -1-2
Error Message Table
Memory
ERROR
Argument
ERROR
Dimension
ERROR
Range ERROR
Condition
ERROR
Non-Real
ERROR
•Operation or memory storage
operation exceeds remaining
memory capacity.
•Incorrect argument specification
for a command that requires an
argument.
•Illegal dimension or list used
during matrix calculations.
1Input of an improper V-Window
value.
2V-Window range settings
exceeded when a graph is
redrawn.
3Input of an improper value on the
range screen and use of that
value for execution.
•Execution of a calculation or
function before all conditions
required for execution are met.
1Calculation that produces a
complex number when Real is
specified for the Complex Mode
setting on the SET UP screen,
even though the argument is a
real number.
2Calculation that produces a
complex number when Real is
specified for the Answer Type
setting on the SET UP screen,
even though the argument is a
real number. (ALGEBRA FX 2.0
PLUS only)
•Keep the number of variables
you use for the operation within
the number of variables
currently available.
•Simplify the data you are trying
to store to keep it within the
available memory capacity.
•Delete no longer needed data
to make room for the new data.
•Correct the argument.
•Check the matrix or list
dimension.
1Change the V-Window value so
it is within range.
2Redraw using the proper
settings.
3Input a proper range value.
•Check the conditions and make
any necessary corrections.
1Change the Complex Mode
setting to something other than
Real.
2Change the Answer Type
setting to something other than
Real. (ALGEBRA FX 2.0 PLUS
only)
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19990401
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Error Message Table
MeaningMessage Countermeasure
Complex
Number In List
Complex
Number In
Matrix
Can’t Solve!
Adjust Initial
Value Or
Bounds. Then
Tr y A gain
No Variable
Iteration
ERROR
Com ERROR
Tr ansmit
ERROR
Receive
ERROR
Memory Full
•List containing complex number
used in a calculation or
operation for which complex
number data is invalid.
•Matrix containing complex
number used in a calculation or
operation for which complex
number data is invalid.
•Solve could not obtain a
solution within the specified
range.
•No variable specified within a
graph function being used for
Dynamic Graph.
•Novariable within a Solve
equation.
1No convergence of Solve
solutions.
2No integration or differential
calculation solution that
satisfies operation ending
condition (tol value).
•Problem with cable connection
or parameter setting during
program data communications.
•Problem with cable connection
or parameter setting during data
communications.
•Problem with cable connection
or parameter setting during data
communications.
•Memory of receiving unit
became full during program
data communications.
•Change all data in the list to
real numbers.
•Change all data in the matrix to
real numbers.
•Change the specified range.
•Correct the input expression.
•Specify a variable for the graph
function.
1Change the initial estimated
value to one that is nearer to
the solution.
2Increase the tol value to reduce
precision.
•Check the cable connection.
•Check the cable connection.
•Check the cable connection.
•Delete some data stored in the
receiving unit and try again.
19991201

19990401
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Error Message Table
MeaningMessage Countermeasure
Download
ERROR
Model
Mismatch
Overflow
ERROR *
Domain
ERROR *
•Data communication cable
disconnect during add-in
installation, or incorrect
data transfer conditions.
•Attempt to perform back up
between two different models.
•Overflow of the calculation
range in the Algebre Mode.
•Overflow of the input element
range in the Algebre Mode.
•Press wand try again.
•Press iand try again.
•Use two identical models.
•Correct the input expression.
•Correct the input expression.
20010102
* ALGEBRA FX 2.0 PLUS only

19990401
α -2-1
Input Ranges
2Input Ranges
sinx
cosx
tanx
sin–1x
cos–1x
tan–1x
sinhx
coshx
tanhx
sinh–1x
cosh–1x
tanh–1x
logx
Inx
10x
ex
x
x2
1/x
3x
x
!
nPr
nCr
As a rule,
precision is
±1 at the
10th digit.*
"
"
"
"
"
"
"
"
"
However, for tanx:
|x|
GG
GG
G 90(2n+1):DEG
|x|
GG
GG
G π/2(2n+1):RAD
|x|
GG
GG
G 100(2n+1):GRA
*Complex numbers can be
used as arguments.
*Complex numbers can be
used as arguments.
*Complex numbers can be
used as arguments.
*Complex numbers can be
used as arguments.
*Complex numbers can be
used as arguments.
*Complex numbers can be
used as arguments.
*Complex numbers can be
used as arguments.
*Complex numbers can be
used as arguments.
(DEG) |x| < 9 ×(109)°
(RAD) |x| < 5 ×107πrad
(GRA) |x| < 1 ×1010grad
|x| <1
|x| < 1 ×10100
|x| <230.2585092
|x| < 1 ×10100
|x| < 5 ×1099
1<x< 5 ×1099
|x| < 1
1 ×10–99 <x< 1 ×10100
–1 ×10100 < x< 100
–1 ×10100
< x<230.2585092
0 <x< 1 ×10100
|x| <1 ×1050
|x| < 1 ×10100, x
GG
GG
G 0
|x| < 1 ×10100
0 <x<69
(xis an integer)
Result < 1 ×10100
n, r(nand rare integers)
0 <r<n,
n< 1 ×1010
15 digits
"
"
"
"
"
"
"
"
"
Function Input range for real
number solutions
Internal
digits Precision Notes
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19990401
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Input Ranges
Pol (x, y)
Rec
(r, θ )
°’ ”
←
°’ ”
^(xy)
xy
ab/c
15 digits
"
"
"
"
"
As a rule,
precision is
±1 at the
10th digit.*
"
"
"
"
"
However, for tan θ :
| θ |
GG
GG
G 90(2n+1):DEG
| θ |
GG
GG
G π/2(2n+1):RAD
| θ |
GG
GG
G 100(2n+1):GRA
|r| < 1 ×10100
(DEG) | θ | < 9 ×(109)°
(RAD) | θ | < 5 ×107πrad
(GRA) | θ | < 1 ×1010grad
|a|, b, c< 1 ×10100
0 <b, c
|x| < 1 ×10100
Sexagesimal display:
|x| < 1 ×107
x> 0:
–1 ×10100 < ylog x< 100
x= 0 : y > 0
x< 0 :
1
y=n,–––– (nis an integer
2n+1 or a fraction)
However;
–1 ×10100 < y log |x| < 100
y> 0 : x
GG
GG
G 0
1
–1 ×10100 < –– logy < 100
x
y= 0 : x > 0 1
y< 0 : x = 2n+1, ––
n
(n
GG
GG
G 0, nis an integer or a
fraction)
However;
1
–1 ×10100 < –– log |y| < 100
x
Total of integer, numerator
and denominator must be
within 10 digits (includes
division marks).
*For a single calculation, calculation error is ±1 at the 10th digit. (In the case of exponential display,
calculation error is ±1 at the last significant digit.) Errors are cumulative in the case of consecutive
calculations, which can also cause them to become large. (This is also true of internal consecutive
calculations that are performed in the case of ^(xy), xy, x!, 3x, nPr, nCr, etc.)
In the vicinity of a function’s singular point and point of inflection, errors are cumulative and may
become large.
Function Input range for real
number solutions
Internal
digits Precision Notes
< 1 ×10100 x2+ y2
*Complex numbers can be
used as arguments.
*Complex numbers can be
used as arguments.
20011101

19990401
α -2-3
Input Ranges
Function
Binary,
octal,
decimal,
hexadecimal
calculation
Input range
Values fall within following ranges after conversion:
DEC: –2147483648 <x<2147483647
BIN: 1000000000000000 <x
<1111111111111111 (negative)
0 <x<0111111111111111 (0, positive)
OCT: 20000000000 <x<37777777777 (negative)
0 <x<17777777777 (0, positive)
HEX: 80000000 <x<FFFFFFFF (negative)
0 <x<7FFFFFFF (0, positive)

19990401
α -3-1
Specifications
3Specifications
Variables: 28
Calculation range:
±1 ×10–99 to ±9.999999999 ×1099 and 0. Internal operations use 15-digit mantissa.
Exponential display range: Norm 1: 10–2 > |x|, |x| >1010
Norm 2: 10–9 > |x|, |x| >1010
Program capacity: 144 kbytes (max.)
Power supply:
Main: Four AAA-size batteries (LR03 (AM4) or R03 (UM-4))
Back-up: One CR2032 lithium battery
Power consumption: 0.2 W
Approximate battery life
Main (ALGEBRA FX 2.0 PLUS):
LR03 (AM4): 230 hours (continuous display of main menu)
150 hours continuous operation (5 minutes calculation, 55 minutes display)
R03 (UM-4): 140 hours (continuous display of main menu)
90 hours continuous operation (5 minutes calculation, 55 minutes display)
Main (FX 1.0 PLUS):
LR03 (AM4): 200 hours (continuous display of main menu)
140 hours continuous operation (5 minutes calculation, 55 minutes display)
R03 (UM-4): 120 hours (continuous display of main menu)
80 hours continuous operation (5 minutes calculation, 55 minutes display)
Back-up: 2 years
Auto power off:
Power is automatically turned off approximately six minutes or 60 minutes after last
operation.
Ambient temperature range: 0 °C to 40 °C
Dimensions: 19.5 mm (H) ×82 mm (W) ×178 mm (D)
3/4" (H) ×3 1/4" (W) ×6 7/8" (D)
Weight: Approx. 213 g (including batteries)
20010102

19990401
α -3-2
Specifications
Data Communications
Method: Start-stop (asynchronous), half-duplex
Transmission speed (BPS): 38400 bits/second (normal)
9600 bits/second (H-Copy & Send/Receive)
Parity: None
Bit length: 8 bits
Stop bit:
Send: 3 bits
Receive: 2 bits
Includes parity (None) 1-bit
X ON/X OFF Control: None