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ceil.js
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ceil.js
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import { factory } from '../../utils/factory'
import { deepMap } from '../../utils/collection'
import { nearlyEqual } from '../../utils/number'
import { nearlyEqual as bigNearlyEqual } from '../../utils/bignumber/nearlyEqual'
import { ceilNumber } from '../../plain/number'
const name = 'ceil'
const dependencies = ['typed', 'config', 'round']
export const createCeil = /* #__PURE__ */ factory(name, dependencies, ({ typed, config, round }) => {
/**
* Round a value towards plus infinity
* If `x` is complex, both real and imaginary part are rounded towards plus infinity.
* For matrices, the function is evaluated element wise.
*
* Syntax:
*
* math.ceil(x)
*
* Examples:
*
* math.ceil(3.2) // returns number 4
* math.ceil(3.8) // returns number 4
* math.ceil(-4.2) // returns number -4
* math.ceil(-4.7) // returns number -4
*
* const c = math.complex(3.2, -2.7)
* math.ceil(c) // returns Complex 4 - 2i
*
* math.ceil([3.2, 3.8, -4.7]) // returns Array [4, 4, -4]
*
* See also:
*
* floor, fix, round
*
* @param {number | BigNumber | Fraction | Complex | Array | Matrix} x Number to be rounded
* @return {number | BigNumber | Fraction | Complex | Array | Matrix} Rounded value
*/
return typed('ceil', {
number: function (x) {
if (nearlyEqual(x, round(x), config.epsilon)) {
return round(x)
} else {
return ceilNumber(x)
}
},
Complex: function (x) {
return x.ceil()
},
BigNumber: function (x) {
if (bigNearlyEqual(x, round(x), config.epsilon)) {
return round(x)
} else {
return x.ceil()
}
},
Fraction: function (x) {
return x.ceil()
},
'Array | Matrix': function (x) {
// deep map collection, skip zeros since ceil(0) = 0
return deepMap(x, this, true)
}
})
})