From b71c0c580e2537e4a35b8d712a154c72298f3d4d Mon Sep 17 00:00:00 2001 From: mfranz <mfranz> Date: Tue, 5 May 2009 18:34:53 +0000 Subject: [PATCH] add signum function sgn(); consistent use of braces --- Nasal/math.nas | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/Nasal/math.nas b/Nasal/math.nas index ca4d7943e..75f6a0fc4 100644 --- a/Nasal/math.nas +++ b/Nasal/math.nas @@ -1,5 +1,7 @@ var abs = func(n) { n < 0 ? -n : n } +var sgn = func(x) { x < 0 ? -1 : x > 0 } + var pow = func(x, y) { exp(y * ln(x)) } var mod = func(n, m) { @@ -11,7 +13,7 @@ var asin = func(y) { atan2(y, sqrt(1-y*y)) } var acos = func(x) { atan2(sqrt(1-x*x), x) } -var tan = func(x) sin(x) / (cos(x) or die("tangens infinity")); +var tan = func(x) { sin(x) / (cos(x) or die("tangens infinity")) } var _iln10 = 1/ln(10); -var log10 = func(x) { ln(x) * _iln10; } +var log10 = func(x) { ln(x) * _iln10 }