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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
Index of variables in the programs
Programs can overwrite variables that you are using, e.g., in the calculation screen.
Here, you can check for which variable names this is the case.
Press P D , and then select the program title.
The index of variables which are used in the selected program is displayed.
• The subjects of the index are as follows ;
A~Z, θ, L1~L6, mat A~ mat J
• Press { or } to display the previous or next program's variables.
• Press @ q to exit.
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
•
The calculator has 6 comparison
operands.
Press M F and select an
•
appropriate comparison operand.
= Equal
> Greater than
< Less than
Chapter 11: Programming Features
×
+
–
÷
,
,
,
, sin, cos, log and others) or using
≠ Not equal
≥ Greater than or equal
≤ Less than or equal
+
B.
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