# Matrix-Vector product Calculator

## Calculates the matrix-vector product.

 $\hspace{30}Ax=c\\\vspace{5}\normal{\left[\begin{array}\vspace{10} a_{\small 11}& \cdots& a_{\small 1j}\\\vspace{10} a_{\small 21}& \cdots& a_{\small 2j}\vspace{20}\\ \vdots& \ddots& \vdots\vspace{10}\\a_{\small i1}& \cdots& a_{\small ij}\\\end{array}\right]} \normal{\left(\begin{array}\vspace{10} x_1\\\vspace{10} x_2\vspace{20}\\\vdots\\x_j\\\end{array}\right)}=\normal{\left(\begin{array}\vspace{10} \sum a_{1j}x_j\\\vspace{10} \sum a_{2j}x_j\vspace{20}\\\vdots\\\sum a_{ij}x_j\\\end{array}\right)}\\$
 matrix A {aij} vector x {xj}
 6dgt10dgt14dgt18dgt22dgt26dgt30dgt34dgt38dgt42dgt46dgt50dgt matrix-vector product
 A Matrix and a vector can be multiplied only if the number of columns of the matrix and the the dimension of the vector have the same size.$Ax=c\hspace{30}\normal c_{i}={\large\sum_{\tiny j}}a_{ij}x_{j}\\$

Thank you for your questionnaire.
Sending completion

To improve this 'Matrix-Vector product Calculator', please fill in questionnaire.
Male or Female ?
Male Female
Age
Under 20 years old 20 years old level 30 years old level
40 years old level 50 years old level 60 years old level or over
Occupation
Elementary school/ Junior high-school student
High-school/ University/ Grad student A homemaker An office worker / A public employee
Self-employed people An engineer A teacher / A researcher
A retired people Others
Useful?
Very Useful A little Not at All
Purpose of use?