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

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.

-1-1

Error Message Table

1Error Message Table

19990401

Meaning

Message Countermeasure

-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)

20010102

19990401

-1-3

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.

•Delete some data stored in the

receiving unit and try again.

19991201

19990401

-1-4

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.

20010102

* ALGEBRA FX 2.0 PLUS only

19990401

-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

1/x

nPr

nCr

As a rule,

precision is

±1 at the

10th digit.*

However, for tanx:

|x|

90(2n+1):DEG

|x|

π/2(2n+1):RAD

|x|

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

|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

20011101

19990401

-2-2

Input Ranges

Pol (x, y)

Rec

(r,

)

°’ ”

←

°’ ”

^(xy)

ab/c

15 digits

As a rule,

precision is

±1 at the

10th digit.*

However, for tan

90(2n+1):DEG

π/2(2n+1):RAD

100(2n+1):GRA

|r| < 1 ×10100

(DEG) |

| < 9 ×(109)°

(RAD) |

| < 5 ×107πrad

(GRA) |

| < 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 :

y=n,–––– (nis an integer

2n+1 or a fraction)

However;

–1 ×10100 < y log |x| < 100

y> 0 : x

–1 ×10100 < –– logy < 100

y= 0 : x > 0 1

y< 0 : x = 2n+1, ––

0, nis an integer or a

fraction)

However;

–1 ×10100 < –– log |y| < 100

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

-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

-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

-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

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