Sharp EL-9900 Calculator User Manual


 
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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
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.
5 X The variable X is set to the value 5.
MX + B Y The variable Y is set to the value of formula MX + B.
4. Operands
Almost all the calculation operands can be used in a program.
Input an operand directly from the keys (+, , ×, ÷, sin, cos, log and others) or using
MATH, STAT, LIST, MATRIX and other menus.
Comparison operands
The calculator has 6 compari-
son operands.
Press M F and select
an appropriate comparison
operand.
= Equal Not equal
> Greater than Greater than or equal
< Less than Less than or equal