| ZVON > References > Haskell reference |
| Intro / Search / ZVON |
| | Indexes | Syntax | Prelude | Ratio | Complex | Numeric | Ix | Array | List | Maybe | Char | Monad | IO | Directory | System | Time | Locale | CPUTime | >> Random << |
| Module: | Random |
|---|---|
| Function: | randomR |
| Type: | (Random a, RandomGen b) => (a,a) -> b -> (a,b) |
| Class: | Random |
| Description: | randomR takes a range (lo,hi) and a random number generator g, and returns a random value uniformly distributed in the closed interval [lo,hi], together with a new generator. |
| Related: |
Program source: import Random main = do a <- drawInt 1 10 b <- drawInt 1 10 x <- drawDouble 0.0 1.0 print a print b print x drawInt :: Int -> Int -> IO Int drawInt x y = getStdRandom (randomR (x,y)) drawDouble :: Double -> Double -> IO Double drawDouble x y = getStdRandom (randomR (x,y))
Output: 6
Output: 2
Output: 0.8674070605466624
|
|
|