10 lines
363 B
JavaScript
10 lines
363 B
JavaScript
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import {Complex} from './Complex.js'
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import {match} from '#core/TypePatterns.js'
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import {ReturnsAs} from '#generic/helpers.js'
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export const isReal = match(Complex, (math, C) => {
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const eq = math.equal.resolve([C.Component, C.Component])
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const add = math.add.resolve([C.Component, C.Component])
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return ReturnsAs(eq, z => eq(z.re, add(z.re, z.im)))
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})
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