Variables; Setting A Variable; Operands; Comparison Operands - Sharp EL-9900 Operation Manual

Chapter 13: Programming Features

3. Variables

• Single letters (uppercase letter from A to Z and θ) can be used as variables.
• Defined once in one program, a variable is set as a global variable across all other
stored programs unless redefined.
Hence results calculated in one program can be used by another.
• Only value (numbers) can be set as variables.
• Strings cannot be set as variables.

Setting a variable

5 → X
MX + B → Y

4. Operands

• Almost all the calculation operands can be used in a program.
• Input an operand directly from the keys (
MATH, STAT, LIST, MATRIX and other menus.

Comparison operands

206
Use R to input a specific value or the value of formula into
the variable. Do not use = (comparison operands) to set the
values into variable.
The variable X is set to the value 5.
The variable Y is set to the value of formula MX
• The calculator has 6 compari-
son operands.
• Press M F and select
an appropriate comparison
operand.
= Equal
> Greater than
< Less than
×
+ – ÷
, , , , sin, cos, log and others) or using
≠ Not equal
≥ Greater than or equal
≤ Less than or equal
+
B.