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add sin proc for math

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This commit is contained in:
Michael Fellinger 2011-01-04 20:57:00 +09:00
commit 9e29737178
1 changed files with 2 additions and 0 deletions
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lib/pure/math.nim
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@ -159,6 +159,7 @@ when not defined(ECMAScript):
## same as ``sqrt(x*x + y*y)``.
proc sinh*(x: float): float {.importc: "sinh", header: "<math.h>".}
proc sin*(x: float): float {.importc: "sin", header: "<math.h>".}
proc tan*(x: float): float {.importc: "tan", header: "<math.h>".}
proc tanh*(x: float): float {.importc: "tanh", header: "<math.h>".}
proc pow*(x, y: float): float {.importc: "pow", header: "<math.h>".}
@ -209,6 +210,7 @@ else:
proc cosh*(x: float): float = return (exp(x)+exp(-x))*0.5
proc hypot*(x, y: float): float = return sqrt(x*x + y*y)
proc sinh*(x: float): float = return (exp(x)-exp(-x))*0.5
proc sin*(x: float): float {.importc: "Math.sin", nodecl.}
proc tan*(x: float): float {.importc: "Math.tan", nodecl.}
proc tanh*(x: float): float =
var y = exp(2.0*x)