Math

Use this Test Grade Calculator to estimate your current grade and what score you need next. Works with weighted categories.

Use this Determinant Calculator to find the determinant of 2×2, 3×3, and 4×4 matrices. Includes steps, formulas, and examples.

Use a Wronskian Calculator to compute the Wronskian of functions and test linear independence for differential equations.

Use this Parallelogram Calculator to find area and perimeter from side length and height (plus angle-based height when needed).

Learn how to calculate area for rectangles, squares, circles, and triangles. Use the Area Calculator to convert units and get results fast.

Use an Eigenvalue Calculator to find eigenvalues of 2×2 and 3×3 matrices. Get results instantly and learn how they’re computed.

Use an Eigenvector Calculator to compute eigenvalues and eigenvectors of a 2×2 matrix. Get results instantly and verify your work.

Use a Linear Independence Calculator to determine whether vectors are linearly independent by computing a matrix rank condition.

Learn how to compute RREF and what it means. Use the RREF Calculator to reduce any matrix to row-reduced echelon form.

Use a Gaussian Elimination Calculator to solve linear systems by turning equations into row-echelon form and back-substituting.