Linear equation ax + b = c

Calculates the solution, coefficient a, or coefficient b for ax + b = 0.

Calculates the solution or one parameter of a * b^x = c.

Calculates the discriminant and two real roots of ax^2 + bx + c = 0.

Solves a 2x2 linear system using Cramer's rule.

Solves a simple system of two linear equations with two unknowns.

Calculates the angle between two non-zero 3D vectors.