Vector Times Matrix Calculator

Introduction: The Vector Times Matrix Calculator is a powerful tool designed to help you perform vector-matrix multiplication with ease. This mathematical operation is commonly used in various fields, including linear algebra, computer graphics, and engineering. Whether you are a student, a researcher, or a professional, this calculator can save you valuable time and effort in computing the results of vector-matrix multiplications.

Formula: The formula for multiplying a vector by a matrix is straightforward. Given a vector v and a matrix M, the resulting vector w is calculated as:

w = M * v


  • v is the input vector with n elements.
  • M is the matrix with dimensions m x n.
  • w is the resulting vector with m elements.

This operation involves multiplying each row of the matrix by the vector, summing the products, and storing the results in the resulting vector.

How to Use: Using the Vector Times Matrix Calculator is a simple and intuitive process:

  1. Enter the vector in the “Enter Vector” field. Ensure that you use square brackets to enclose the elements, separated by commas. For example, [1, 2, 3].
  2. Input the matrix in the “Enter Matrix” field. Use double square brackets to enclose rows and elements, separated by commas. For example, [[1, 2], [3, 4], [5, 6]].
  3. Click the “Calculate” button to perform the vector-matrix multiplication.
  4. The result will be displayed in the “result” section.

Example: Suppose you want to multiply the vector [1, 2, 3] by the matrix [[1, 2], [3, 4], [5, 6]]. Entering these values into the calculator and clicking “Calculate” will yield the result: [22, 28].


  1. Q: Is this calculator suitable for any vector-matrix multiplication? A: Yes, you can use this calculator for any vector-matrix multiplication, as long as you follow the input format.
  2. Q: Can I enter large matrices and vectors? A: The calculator can handle vectors and matrices of various sizes, so feel free to use it for your specific needs.
  3. Q: What if my input is not in the correct format? A: Ensure that you use the correct format with square brackets for vectors and double square brackets for matrices. The calculator will guide you.
  4. Q: Is the result always a vector? A: Yes, the result of vector-matrix multiplication is always a vector.
  5. Q: Can I perform multiple calculations without refreshing the page? A: Yes, you can enter new values and click “Calculate” as many times as needed without refreshing the page.
  6. Q: Are there any limitations to the calculator? A: The calculator may not handle extremely large input values, but it is suitable for most standard applications.

Conclusion: The Vector Times Matrix Calculator simplifies the process of performing vector-matrix multiplications, making it a valuable tool for mathematicians, engineers, and students. With its user-friendly interface and accurate calculations, it provides an efficient way to obtain precise results for a wide range of applications. Save time and effort by using this calculator for your vector-matrix multiplication needs.

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