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Added Euclidean Distance #1418

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Merged
merged 3 commits into from
Oct 5, 2023
Merged

Added Euclidean Distance #1418

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aa1e1ae
Added Euclidean Distance
kausthub-kannan Oct 3, 2023
d22c036
Added documentation to params
kausthub-kannan Oct 4, 2023
45b7683
Use @see annotation
appgurueu Oct 4, 2023
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19 changes: 19 additions & 0 deletions Maths/EuclideanDistance.js
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Original file line number Diff line number Diff line change
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/**
* @see [Wikipedia](https://en.wikipedia.org/wiki/Euclidean_distance)
* Calculate the Euclidean distance between two vectors.
* @param {number[]} vector1 - The first vector.
* @param {number[]} vector2 - The second vector.
* @returns {number} The Euclidean distance between the two vectors.
*/

const EuclideanDistance = (vector1, vector2) => {
let sumOfSquares = 0

for (let i = 0; i < vector1.length; i++) {
sumOfSquares += Math.pow(vector1[i] - vector2[i], 2)
}

return Math.sqrt(sumOfSquares)
}

export { EuclideanDistance }
19 changes: 19 additions & 0 deletions Maths/test/EuclideanDistance.test.js
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import { EuclideanDistance } from '../EuclideanDistance.js'

describe('EuclideanDistance', () => {
it('should calculate the distance correctly for 2D vectors', () => {
expect(EuclideanDistance([0, 0], [2, 2])).toBeCloseTo(2.8284271247461903, 10)
})

it('should calculate the distance correctly for 3D vectors', () => {
expect(EuclideanDistance([0, 0, 0], [2, 2, 2])).toBeCloseTo(3.4641016151377544, 10)
})

it('should calculate the distance correctly for 4D vectors', () => {
expect(EuclideanDistance([1, 2, 3, 4], [5, 6, 7, 8])).toBeCloseTo(8.0, 10)
})

it('should calculate the distance correctly for different 2D vectors', () => {
expect(EuclideanDistance([1, 2], [4, 6])).toBeCloseTo(5.0, 10)
})
})