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Linear Algebra

2D Vector Cross Product

Compute the scalar magnitude of the cross product of two 2D vectors U and V. Use it to find the signed area of the parallelogram they span or to test if two vectors are parallel.

Fill in the required fields to see your result.
Linear Algebra

Vector Magnitude Calculator

Compute the Euclidean magnitude (length) of a 3D vector as √(x² + y² + z²). Use it to normalise a vector, measure distance, or check the size of a direction vector.

Fill in the required fields to see your result.

Key differences

2D Vector Cross ProductVector Magnitude Calculator
CategoryLinear AlgebraLinear Algebra
Inputs required43
ResultCross Product MagnitudeVector Magnitude
What it doesCompute the scalar magnitude of the cross product of two 2D vectors U and V. Use it to find the signed area of the parallelogram they span or to test if two vectors are parallel.Compute the Euclidean magnitude (length) of a 3D vector as √(x² + y² + z²). Use it to normalise a vector, measure distance, or check the size of a direction vector.