19 lines
508 B
Text
19 lines
508 B
Text
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) {
|
|
var x = n - m * int(n/m); # int() truncates to zero, not -Inf
|
|
return x < 0 ? x + abs(m) : x; # ...so must handle negative n's
|
|
}
|
|
|
|
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 _iln10 = 1/ln(10);
|
|
var log10 = func(x) { ln(x) * _iln10 }
|