API Reference > geometry-core > Numerics > SmallSystem > linearSystem3d linearSystem3d MethodStatic Solve a linear system x equation: ux *u * vx * v + wx * w = cx y equation: uy *u * vy * v + wy * w = cy z equation: uz *u * vz * v + wz * w = cz linearSystem3d(axx: number, axy: number, axz: number, ayx: number, ayy: number, ayz: number, azx: number, azy: number, azz: number, cx: number, cy: number, cz: number, result?: Vector3d): Vector3d | undefined Parameter Type Description axx number row 0, column 0 coefficient axy number row 0, column 1 coefficient axz number row 0, column 1 coefficient ayx number row 1, column 0 coefficient ayy number row 1, column 1 coefficient ayz number row 1, column 2 coefficient azx number row 2, column 0 coefficient azy number row 2, column 1 coefficient azz number row 2, column 2 coefficient cx number right hand side row 0 coefficient cy number right hand side row 1 coefficient cz number right hand side row 2 coefficient result Vector3d optional result. Returns - Vector3d | undefined Defined in core/geometry/src/numerics/Polynomials.ts Line 1613 Last Updated: 13 June, 2024