Exp
Returns e raised to the power of a given number
result = Exp( number )
The mathematical constant e, also called Euler's constant, is the base of the Exp and Log and is an irrational and transcendental number. The value of e to twenty places is: 2.7182818284590452354. The required number argument can be any valid numeric expression within range of the function. If number is too large, FreeBASIC returns infinity. If number is too small, FreeBASIC returns zero. The exact limit on number is based on the math processor. If number is an uninitialized variable, 1 is returned.
The output would look like:
Syntax
Usage
result = Exp( number )
Parameters
Return Value
Description
The mathematical constant e, also called Euler's constant, is the base of the Exp and Log and is an irrational and transcendental number. The value of e to twenty places is: 2.7182818284590452354. The required number argument can be any valid numeric expression within range of the function. If number is too large, FreeBASIC returns infinity. If number is too small, FreeBASIC returns zero. The exact limit on number is based on the math processor. If number is an uninitialized variable, 1 is returned.
Example
'Compute Continuous Compound Interest
Dim r As Double
Dim p As Double
Dim t As Double
Dim a As Double
Input "Please enter the initial investment (principal amount): "; p
Input "Please enter the annual interest rate (as a decimal): "; r
Input "Please enter the number of years to invest: "; t
a = p * Exp ( r * t )
Print ""
Print "After";t;" years, at an interest rate of"; r * 100; "%, your initial investment of"; p; " would be worth";a
Dim r As Double
Dim p As Double
Dim t As Double
Dim a As Double
Input "Please enter the initial investment (principal amount): "; p
Input "Please enter the annual interest rate (as a decimal): "; r
Input "Please enter the number of years to invest: "; t
a = p * Exp ( r * t )
Print ""
Print "After";t;" years, at an interest rate of"; r * 100; "%, your initial investment of"; p; " would be worth";a
The output would look like:
Please enter the initial investment (principal amount): 100 Please enter the annual interest rate (As a decimal): .08 Please enter the number of years To invest: 20 After 20 years, at an interest rate of 8%, your initial investment of 100 would be worth 495.3032424395115
Differences from QB
- None
See also
