MathSass

⚠️ This project is no longer maintained. This repository is archived and no longer accepting issues or pull requests. The devDependencies contain known security vulnerabilities, but these do not affect library users — only the dist/ directory is included when installed via npm. Consider using Sass's built-in math module (@use "sass:math") instead, which provides native implementations of these functions.

A Sass implementation of mathematical functions.

git clone git@github.com:terkel/mathsass.git && cd mathsass

bower install mathsass --save-dev

npm install mathsass --save-dev

Import dist/_math.scss partial to the Sass document.

@import "path/to/dist/math";

.content {
    height: 200px;
    width: 200px / tan(60deg); // 115.47005px
}

If you installed via Npm the path will be: node_modules/mathsass/dist/math

If you installed via Bower the path will be: bower_components/mathsass/dist/math

• $E - Euler's constant (ネイピア数 [オイラー数])
• $PI - π (円周率)
• $LN2 - The natural logarithm of 2 (2 の自然対数)
• $SQRT2 - The square root of 2 (2 の平方根)

• pow($base, $exp)

@debug pow(4, 2);   // 16
@debug pow(4, -2);  // 0.0625
@debug pow(4, 0.2); // 1.31951

• fact($x)

@debug fact(4); // 24
@debug fact(8); // 40320

• sqrt($x)

@debug sqrt(2); // 1.41421
@debug sqrt(3); // 1.73205

• exp($x)
• frexp($x)
• ldexp($x, $exp)

@debug exp(-1); // 0.36788
@debug exp(0);  // 1
@debug exp(1);  // 2.71828

• log($x, $b: null)

@debug log(2);     // 0.69315
@debug log(10);    // 2.30259
@debug log(2, 10); // 0.30103

• sin($x) - Sine (正弦)
• cos($x) - Cosine (余弦)
• tan($x) - Tangent (正接)
• csc($x) - Cosecant (余割)
• sec($x) - Secant (正割)
• cot($x) - Cotangent (余接)

If argument has deg unit, converted to rad.

@debug tan(0.5236); // 0.57735
@debug tan(30deg);  // 0.57735

• asin($x) - Arcsine (逆正弦)
• acos($x) - Arccosine (逆余弦)
• atan($x) - Arctangent (逆正接)
• atan2($y, $x) - Arctangent of the quotient of its arguments (引数の比率での逆正接)

@debug atan2(0, 0);       // 0
@debug atan2(0, -0.0);    // 3.14159
@debug atan2(-0.0, 0);    // 0
@debug atan2(-0.0, -0.0); // -3.14159

• gcd($a, $b) - Greatest common divisor (最大公約数)
• lcm($a, $b) - Least common multiple (最小公倍数)

@debug gcd(54, 24); // 6
@debug lcm(30, 42); // 210

• strip-unit($number)
• deg-to-rad($deg, $unit: true)
• rad-to-deg($rad, $unit: true)
• unitless-rad($angle)

@debug rad-to-deg(1.0472);       // 60.00014deg
@debug deg-to-rad(60deg);        // 1.0472rad
@debug deg-to-rad(60deg, false); // 1.0472
@debug unitless-rad(60deg);      // 1.0472
@debug unitless-rad(1.0472rad);  // 1.0472

• adambom/Sass-Math · GitHub
• Team-Sass/Sassy-math · GitHub
• Math - JavaScript | MDN
• 404 Blog Not Found:javascript - Mathを再発明してみた
• C言語による最新アルゴリズム事典

…and Wikipedia articles:

• Exponentiation, 冪乗 (累乗)
• Factorial, 階乗
• Square root, 平方根
• Exponential function, 指数関数
• Logarithm, 対数
• Trigonometric functions, 三角関数
• Inverse trigonometric functions, 逆三角関数
• Greatest common divisor, 最大公約数
• Least common multiple, 最小公倍数
• Degree (angle), 度 (角度)
• Radian, ラジアン

Originally created with help from @kaminaly and @pilssalgi.

Copyright (c) 2013 Takeru Suzuki Licensed under the MIT license.