# IDoubleDistribution..::..SetCDFInterval Method

Sets the interval on which the CDF is queried for X. The RNG internally generates a number 'x' on (0..1), and CDF(x) is the output
random number on the distribution. For the purpose of generating a schedule, running monte-carlo simulations
of schedules and other related tasks, we may want to generate randoms on just a portion of that CDF, say
instead of (0..1), perhaps (0..0.95), or if we want the mean value, we would use an interval of (0.5,0.5).

**Namespace:**
Highpoint.Sage.Mathematics

**Assembly:**
Sage4 (in Sage4.dll)