20 lines
665 B
TypeScript
20 lines
665 B
TypeScript
import {Complex} from './type.js'
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import {Signature, Dependency, ImpType} from '../core/Dispatcher.js'
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declare module "./type" {
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interface ComplexReturn<Params> {
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isReal: Signature<Params, [Complex<any>], boolean>
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isSquare: Signature<Params, [Complex<any>], boolean>
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}
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}
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export const isReal =
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<T>(dep: Dependency<'equal', [T,T]>
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& Dependency<'add', [T,T]>
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& Dependency<'isReal', [T]>
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): ImpType<'isReal', [Complex<T>]> =>
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z => dep.isReal(z.re) && dep.equal(z.re, dep.add(z.re, z.im))
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export const isSquare: ImpType<'isSquare', [Complex<any>]> =
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z => true // FIXME: not correct for Complex<bigint> once we get there
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