Analytic geometry
Linear systems
Determinants and solutions of 2×2 systems and 3×3 components.
Analytic geometry
2×2 system determinant
D = ad−bc→Analytic geometrySolve x in a 2×2 system
x = (ed−bf)/(ad−bc)→Analytic geometrySolve y in a 2×2 system
y = (af−ec)/(ad−bc)→Analytic geometrySolve x in a 3×3 system
x = det Aₓ / det A→Analytic geometrySolve y in a 3×3 system
y = det Aᵧ / det A→Analytic geometryLinear equation residual
r = ax+by−c→Analytic geometryLinear system 2×2…5×5
A·x = b→