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CASIO

User´s Guide

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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.



Example 1: 4 × sin30 × (30 + 10 × 3) = 120


*1 Input of the closing parenthesis is required for sin, sinh, and other functions that include parentheses.

*2 These multiplication symbols (×) can be omitted. A multiplication symbol 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 e.

*3 The closing parenthesis immediately before the operation can be omitted.


Example 2: Input example omitting *2 and *3 operations in the above example.

  • 43030103

Important!

If you execute a calculation that includes both division and multiplication operations in which a multiplication sign has been omitted, parentheses will be inserted automatically as shown in the examples below.

- When a multiplication sign is omitted immediately before an open parenthesis or after a closed parenthesis.

Examples: 6 ÷ 2 (1 + 2) → 6 ÷ (2 (1 + 2))

Examples: 6 ÷ A (1 + 2) → 6 ÷ (A (1 + 2))

Examples: 1 ÷ (2 + 3) sin(30) → 1 ÷ ((2 + 3) sin(30))

- When a multiplication sign is omitted immediately before a variable, a constant, etc.

Examples: 6 ÷ 2π → 6 ÷ (2π)

Examples: 2 ÷ 2√2 → 2 ÷ (2√2)

Examples: 4π ÷ 2π → 4π ÷ (2π)

- When inputting a function that uses commas (such as Pol, Rec, and RanInt#), be sure to input the closed parentheses required by the expression. If you do not input closed parentheses, parentheses may not be inserted automatically as described above.

If you execute a calculation in which a multiplication sign has been omitted immediately before a fraction (including mixed fractions), parentheses will be inserted automatically as shown in the examples below.

2 × 13  (MthIO-LineO)

  • 132

sin(30) × 45  (MthIO-LineO)

  • 4530

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 and to move the cursor.

When Linear Display is selected, pressing will cause the cursor to jump to the beginning of the calculation, while will jump to the end.

When Natural Display is selected, pressing while the cursor is at the end of the input calculation will cause it to jump to the beginning, while pressing 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 when there are 10 bytes or less of allowed input remaining. If this happens, end calculation input and then press .

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