QBASIC Symbolic Constants

Symbolic Constants

Constants are fixed values (data) that are used in program and they do not change during program execution. Constants are predefined values that do not change during program execution.

Example

CLS 
REM to calculate area of circle 
INPUT "Enter radius in centimeter"; R
CONST PI = 22/7
LET AREA=PI*R^2
PRINT "area of circle = "; AREA; "sq. cm"
End