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export function uniqueStraightLineEquation(    a: number,    b: number,    c: number,): [number, number, number] {    if (c < 0) {        return uniqueStraightLineEquation(-a, -b, -c);    }    const k = Math.abs(a === 0 ? b : a);    a /= k;    b /= k;    c /= k;    return [a, b, c];}