Return a random number between 0 and 1.
XSharp.RT (in XSharp.RT.dll) Version: 2.4a
Syntax View Source
nSeed AS USUAL
) AS FLOAT
public static Float Rand(
- Type: Usual
An optional start value.
This is the point at which the random number generator is initialized. Subsequent random numbers are then influenced by <nSeed>.
If you first call Rand() without <nSeed>, it starts as though 100001 were specified.
If you call the function with <nSeed> as 100001, it allows you to restart the generator.
Then, if you call the function several times without <nSeed>, it returns the "standard sequence" of numbers.
If <nSeed> is less than or equal to 0, the system time is brought into the process.
Rand() allows you to generate pseudo-random numbers. Multiple calls to Rand() always return the same random number sequence, provided that they have the same start value (<nSeed>) on the first call and that any subsequent calls do not specify <nSeed>.
This example uses Rand() to generate the same sequence whenever it runs:
This example generates the same start value as the previous example but subsequent calls accept a seed value which is also influenced by the system time:
This example generates a sequence of random numbers and then reinitializes to the same seed to reproduce the same numbers:
This example multiplies the result by 100 to increase the range of returned values: