Casio FX-55 PLUS User Manual - Page 7

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4 × (30 + 10 × 3) = 240

A multiplication symbol (×) can be omitted when it occurs immediately

before an opening parenthesis, immediately before Rnd or RanInt# function

that includes parentheses, immediately before the Ran# (random number)

function, or immediately before independent memory (M) or π.

The closing parenthesis immediately before the = operation can be

omitted.

Input example omitting **

example.

Note: • If the calculation becomes longer than the screen width during

input, the screen will scroll automatically to the right and the ] indicator will

appear on the display. When this happens, you can scroll back to the left

by using d and e to move the cursor. • Pressing e while the cursor

is at the end of the input calculation will cause it to jump to the beginning,

while pressing d while the cursor is at the beginning will cause it to jump

to the end. • You can input up to 99 bytes for a calculation. Each numeral,

symbol, or function normally uses one byte. Some functions require three

to 13 bytes. • The cursor will change shape to k when there are 10 bytes

or less of allowed input remaining. If this happens, end calculation input

and then press =.

Calculation Priority Sequence

The priority sequence of input calculations is evaluated in accordance with the

rules below. When the priority of two expressions is the same, the calculation

is performed from left to right.

1st

Parenthetical expressions

2nd

Function with parentheses: Rnd(, RanInt#(

Functions that come after the input value (

3rd

^), square root ())

(

4th

Fractions

Negative sign (–)

Note: When squaring a negative value (such as –2), the value

being squared must be enclosed in parentheses ((- 2 )w

=). Since

5th

inputting - 2 w= would result in the squaring of 2 and then

appending a negative sign to the result. Always keep the priority

sequence in mind, and enclose negative values in parentheses

when required.

6th

Multiplication where the multiplication sign is omitted

7th

Multiplication (×), division (÷), remainder calculations (÷R)

8th

Addition, subtraction (+, –)

4 *( 30 + 10 * 3 )=

4 ( 30 + 10 * 3 =

has a higher priority than the negative sign,

and )*

operations in the above

E-6

–1

, °' ", %), powers

Math