Sha256: 01b5ba8254c2cb050ebf40c274044ad87afc771e8a7473c178dcfbcce66af549
Contents?: true
Size: 612 Bytes
Versions: 106
Compression:
Stored size: 612 Bytes
Contents
// Returns the arctangent of a number.
// @param {Number} $x
// @example
// atan(0.1) // 0.09967
// atan(-1) // -0.7854
@function atan ($x) {
$i: 24;
$sgn: 0;
$a: 0;
@if $x > 1 {
$sgn: 1;
$x: 1 / $x;
} @else if $x < -1 {
$sgn: -1;
$x: 1 / $x;
}
@while $i > 0 {
$a: ($i * $i * $x * $x) / (2 * $i + 1 + $a);
$i: $i - 1;
}
@if $sgn > 0 {
@return $PI / 2 - $x / (1 + $a);
} @else if $sgn < 0 {
@return -$PI / 2 - $x / (1 + $a);
} @else {
@return $x / (1 + $a);
}
}
Version data entries
106 entries across 106 versions & 3 rubygems