Glen Whitney
8d3e6e70cb
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Also extends add and multiply to allow multiple arguments. Resolves #29. Reviewed-on: #39 Co-authored-by: Glen Whitney <glen@studioinfinity.org> Co-committed-by: Glen Whitney <glen@studioinfinity.org>
27 lines
872 B
JavaScript
27 lines
872 B
JavaScript
import {iterateBinary, ReturnsAs} from './helpers.js'
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import {plain} from "#number/helpers.js"
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import {Returns, ReturnType, ReturnTyping} from '#core/Type.js'
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import {match, Any} from '#core/TypePatterns.js'
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export const norm = match(Any, (math, T) => {
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const normsq = math.normsq.resolve(T)
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const sqrt = math.sqrt.resolve(
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ReturnType(normsq), ReturnTyping.conservative)
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return ReturnsAs(sqrt, t => sqrt(normsq(t)))
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})
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export const abs = norm // coincide for most types (scalars)
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export const conj = match(Any, (_math, T) => Returns(T, t => t))
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export const square = match(Any, (math, T, strategy) => {
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const mult = math.multiply.resolve([T, T], strategy)
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return ReturnsAs(mult, t => mult(t, t))
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})
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export const add = iterateBinary('add')
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add.push(plain(() => 0))
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export const multiply = iterateBinary('multiply')
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multiply.push(plain(() => 1))
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