MatriX Match

AB

Learning goals
  • Read dimensions as rows Γ— columns.
  • Check products by matching adjacent inner dimensions.
  • Predict product shape from the first rows and last columns.
  • Track transposes: swap dimensions; reverse factor order.
  • Respect order: AB and BA may differ in definedness and shape.
Matrix product cheatsheet
  • Inner numbers match. Outer numbers survive.
  • Transposing flips rows and columns.

CHOOSE A MODE

Pair

Pick matrices to match.

Repair

Transpose to repair.

Link

Trace a valid product path.

Choose a variant.