Casio CFX-9970G Manual - Página 8

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20- 3

ALGBR Mode Commands

Example

P.107

• Other solve functions are available that produce numeric calculation results .

u u u u u Convert to Numeric Value —— (appr)

This command converts an expression to a numeric value.

Syntax: approx <expression>

Example

• Any command to the left of approx causes an error.

Example

• Inputting another ALGBR Mode command or the signum( function into the

Example

k k k k k Difference Between "approx" and Standard Calculations

approx differs from standard calculations (calculations that do not use natural

display notation) in the number of display digits and handling of variables. With

standard calculations, calculation results are displayed without using exponential

notation.

Example

When part of the expression includes a variable, the variable is processed as a

variable regardless of whether or not it has been assigned a value.

Example

To solve AX+B = 0 for X

5(SOLV)1(solve)aA

v+aB,vw

To convert the expression 2 to a numeric value

6(g)6(g)1(appr)

!9cw

1+ approx ( 2 ) (Causes an error.)

approx command causes an error.

approx approx

jMcaw

f*aA+dw

{

X =

1.414213562

2 (Causes an error.)

12157665459056928801

5A + 3

}

–B

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