Casio FX-55 User Manual download pdf (Page 16)

E-15

RanInt#(a, b) a  b;

 1 × 10

; b – a  1 × 10

Simp n 1  n  9999 (n is an integer)

Precision is basically the same as that described under “Calculation Range

and Precision”, above.

type function requires consecutive internal calculation, which can cause

accumulation of errors that occur with each calculation.

Error is cumulative and tends to be large in the vicinity of a function’s singular

point and inflection point.

The range for calculation results that can be displayed in π form is |

x| 

. Note, however, that internal calculation error can make it impossible

to display some calculation results in π form. It also can cause calculation

results that should be in decimal form to appear in π form.

Errors

The calculator will display an error message whenever an error occurs for

any reason during a calculation. There are two ways to exit an error message

display: Pressing d or e to display the location of the error, or pressing

A to clear the message and calculation.

Displaying the Location of an Error

While an error message is displayed, press d or e to return to the

calculation screen. The cursor will be positioned at the location where

the error occurred, ready for input. Make the necessary corrections to the

calculation and execute it again.

When you input 14 ÷ 0 × 2 = by mistake instead of 14 ÷10 × 2 =

14 / 0 * 2 =

e (or d)

d 1 =

Clearing the Error Message

While an error message is displayed, press A to return to the calculation

screen. Note that this also clears the calculation that contained the error.

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MathMath

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Casio FX-55 User Manual Page 16