INNER CODE UNIT · Go

getVector4

Consensys/gnark-crypto · ecc/utils.go:320

func getVector4(l *Lattice4, a, b, c, d *big.Int) [4]big.Int {
	var res [4]big.Int
	coeffs := [4]*big.Int{a, b, c, d}
	var tmp big.Int
	for row := range 4 {
		for col := range 4 {
			tmp.Mul(coeffs[col], &l.V[col][row])
			res[row].Add(&res[row], &tmp)
		}
	}
	return res
}

func det3(a00, a01, a02, a10, a11, a12, a20, a21, a22 *big.Int) big.Int {
	var t0, t1, t2, t3, t4 big.Int
	t0.Mul(a11, a22)
	t1.Mul(a12, a21)
	t0.Sub(&t0, &t1)

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