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86d333ee94
* chore: Switch to Node 20 + Vitest * chore: migrate to vitest mock functions * chore: code style (switch to prettier) * test: re-enable long-running test Seems the switch to Node 20 and Vitest has vastly improved the code's and / or the test's runtime! see #1193 * chore: code style * chore: fix failing tests * Updated Documentation in README.md * Update contribution guidelines to state usage of Prettier * fix: set prettier printWidth back to 80 * chore: apply updated code style automatically * fix: set prettier line endings to lf again * chore: apply updated code style automatically --------- Co-authored-by: github-actions <${GITHUB_ACTOR}@users.noreply.github.com> Co-authored-by: Lars Müller <34514239+appgurueu@users.noreply.github.com>
24 lines
545 B
JavaScript
24 lines
545 B
JavaScript
/*
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* Author: Rak Laptudirm
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*
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* https://en.wikipedia.org/wiki/Newton%27s_method
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*
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* Finding the square root of a number using Newton's method.
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*/
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function sqrt(num, precision = 4) {
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if (!Number.isFinite(num)) {
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throw new TypeError(`Expected a number, received ${typeof num}`)
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}
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if (!Number.isFinite(precision)) {
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throw new TypeError(`Expected a number, received ${typeof precision}`)
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}
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let sqrt = 1
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for (let i = 0; i < precision; i++) {
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sqrt -= (sqrt * sqrt - num) / (2 * sqrt)
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}
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return sqrt
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}
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export { sqrt }
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