Inputting Expressions And Values; Calculation Priority Sequence - Casio fx-570ES PLUS User Manual

Initializing Calculator Settings
Perform the following procedure to initialize the calculator, which returns the
calculation mode to COMP and returns all other settings, including setup
menu settings, to their initial defaults.
19(CLR) 1(Setup) =(Yes)

Inputting Expressions and Values

Basic Input Rules
Calculations can be input in the same form as they are written. When you
press = the priority sequence of the input calculation will be evaluated
automatically and the result will appear on the display.
4 × sin30 × (30 + 10 × 3) = 120
4 *s 30 )*( 30 + 10 * 3 )=
1
* Input of the closing parenthesis is required for sin, sinh, and other functions
that include parentheses.
These multiplication symbols ( × ) can be omitted. A multiplication symbol
2
*
can be omitted when it occurs immediately before an opening parenthesis,
immediately before sin or other function that includes parentheses,
immediately before the Ran# (random number) function, or immediately
before a variable (A, B, C, D, E, F, M, X, Y), scientific constants, π or
The closing parenthesis immediately before the = operation can be
3
*
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. • When Linear Display is selected,
pressing f will cause the cursor to jump to the beginning of the calculation,
while c will jump to the end. • When Natural Display is selected, 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.
1
*
2
*
4 s 30 )( 30 + 10 * 3 =
3
*
and )*
2 3
operations in the above
E-7
Math Math
e
.
Math Math