2×2 determinant

Nearby workflows on Toolcore

• 2×2 matrix determinant — Compute det [[a,b],[c,d]] from four numbers—linear algebra helper in your browser. when units or numeric output should be checked on a related calculator.
• 2×2 matrix multiply — Multiply two 2×2 matrices—a,b,c,d|e,f,g,h. when units or numeric output should be checked on a related calculator.
• Math expression evaluator — Evaluate basic + − × ÷ arithmetic with parentheses in your browser—no variables. when units or numeric output should be checked on a related calculator.
• Percentage calculator — Percent of a value, ratio to percent, and percent change—no server round-trip. when units or numeric output should be checked on a related calculator.

Common use cases

• 2×2 determinant for quick local checks without uploading data.
• Copy results into tickets, docs, or classroom notes.

Common mistakes to avoid

• Unexpected input shape

  See the intro and how-to notes for accepted formats.

FAQ