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add signum function sgn(); consistent use of braces

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This commit is contained in:
mfranz 2009-05-05 18:34:53 +00:00
parent 233a9d27f4
commit b71c0c580e
1 changed files with 4 additions and 2 deletions
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6
Nasal/math.nas
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@ -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 }