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Both calculators run independently — change the inputs on either side to compare results.

Vector Projection Calculator

Calculate the scalar projection of 2D vector A onto vector B. Use this when you need to find how much of vector A lies in the direction of vector B.

Vector A - X component

Vector A - Y component

Vector B - X component

Vector B - Y component

Fill in the required fields to see your result.

Linear Algebra

Matrix Scalar Multiplication

Multiply every element of a 2×2 matrix by a single scalar value. Use this when scaling a transformation matrix or adjusting magnitudes in linear algebra problems.

Scalar Value

Matrix Element (1,1)

Matrix Element (1,2)

Matrix Element (2,1)

Fill in the required fields to see your result.

Key differences

	Vector Projection Calculator	Matrix Scalar Multiplication
Category	Linear Algebra	Linear Algebra
Inputs required	4	4
Result	Scalar Projection	Result Element (1,1)
What it does	Calculate the scalar projection of 2D vector A onto vector B. Use this when you need to find how much of vector A lies in the direction of vector B.	Multiply every element of a 2×2 matrix by a single scalar value. Use this when scaling a transformation matrix or adjusting magnitudes in linear algebra problems.