Calculation Priority Sequence; Calculation Modes - Casio fx-CP400 User Manual

Calculation Priority Sequence

Your ClassPad automatically performs calculations in the following sequence.
1 Commands with parentheses (sin(, diff(, etc.)
2 Factorials ( ), degree specifications (
percents (%)
3 Powers
4 π, memory, variable multiplication operations
that omit the multiplication sign (2π, 5A, etc.),
command with parentheses multiplication
operations that omit the multiplication sign (2' 3,
etc.), ×, ÷
Tip
• Expressions in parentheses are given priority.
• In cases where a series of calculations in the same expression includes more than one of the operators 4 through 9
that are the same priority sequence level, the same level operations are performed from left to right. A series of power
calculations 3 (example: 5^2^3) is performed from right to left (5^(2^3)).
Example: 2 + 3 × (log ( sin( 2

Calculation Modes

All of the following calculation examples are shown using the Algebra mode only.
Standard Mode and Decimal Mode
The Standard mode displays calculation results in mathematical expression format whenever possible, while
the Decimal mode converts calculation results to a decimal form.
Expression
50 ÷ 4 = 12.5
2 + 2 = 3.414213562...
π = 3.1415926535...
sin (2.1π) × 5 = 1.5450849718...
• The Decimal mode results in the above table show what would appear on the display when "Normal 1" is
selected for the [Number Format] setting on the Basic Format dialog box.
u Using the u Button to Toggle between the Standard Mode and Decimal Mode
You can tap u to toggle a displayed value between Standard mode and Decimal mode format.
Note that tapping u toggles the format of a displayed value. It does not change the current Standard mode
and Decimal mode setting.
Tapping u while the ClassPad is configured for Standard mode (Normal 1) display
0205
Tapping u while the ClassPad is configured for Decimal mode (Normal 1) display
0206
o r
, ),
π
2
)) + 6.8) = 22.07101691 (In Algebra mode, Decimal mode, Radian mode)
Decimal Mode Result
5 +, –, (–)
6 Relational operators (=,
7 and
8 or, xor
9 with ( | )
12.5
3.414213562
3.141592654
1.545084972
Chapter 2: Main Application
, <, >, s, t)
Standard Mode Result
5 · (
25
2
2 + 2
π
5 − 1)
4
44