61 lines
1.4 KiB
JavaScript
61 lines
1.4 KiB
JavaScript
/**
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* Common Math expressions.
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*
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* @module math
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*/
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export const floor = Math.floor
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export const ceil = Math.ceil
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export const abs = Math.abs
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export const imul = Math.imul
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export const round = Math.round
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export const log10 = Math.log10
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export const log2 = Math.log2
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export const log = Math.log
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export const sqrt = Math.sqrt
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/**
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* @function
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* @param {number} a
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* @param {number} b
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* @return {number} The sum of a and b
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*/
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export const add = (a, b) => a + b
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/**
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* @function
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* @param {number} a
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* @param {number} b
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* @return {number} The smaller element of a and b
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*/
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export const min = (a, b) => a < b ? a : b
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/**
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* @function
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* @param {number} a
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* @param {number} b
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* @return {number} The bigger element of a and b
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*/
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export const max = (a, b) => a > b ? a : b
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export const isNaN = Number.isNaN
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export const pow = Math.pow
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/**
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* Base 10 exponential function. Returns the value of 10 raised to the power of pow.
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*
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* @param {number} exp
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* @return {number}
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*/
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export const exp10 = exp => Math.pow(10, exp)
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export const sign = Math.sign
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/**
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* Check whether n is negative, while considering the -0 edge case. While `-0 < 0` is false, this
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* function returns true for -0,-1,,.. and returns false for 0,1,2,...
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* @param {number} n
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* @return {boolean} Wether n is negative. This function also distinguishes between -0 and +0
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*/
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export const isNegativeZero = n => n !== 0 ? n < 0 : 1 / n < 0
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