## How do you replace values in a matrix in MATLAB?

You can specify the value to replace as c , M(1,3) or M(3,1) . To replace a particular element of a matrix with a new value while keeping all other elements unchanged, use the assignment operation. For example, M(1,1) = 2 replaces only the first element of the matrix M with the value 2.

## How do you change variables in MATLAB?

Select the variables, right-click, and then select Duplicate. MATLAB creates a copy of the selected variables. Right-click the variable name, and then select Rename. Type the new variable name and press Enter.

**How do I remove a row from a matrix in MATLAB?**

The easiest way to remove a row or column from a matrix is to set that row or column equal to a pair of empty square brackets [] .

### How do you find the inverse of a matrix in MATLAB?

Y = inv( X ) computes the inverse of square matrix X .

- X^(-1) is equivalent to inv(X) .
- x = A\b is computed differently than x = inv(A)*b and is recommended for solving systems of linear equations.

### How do you add two variables in MATLAB?

How to sum two different variables?

- B = input(‘Type the value of B: ‘);
- C = input(‘Type the value of C: ‘);
- E = input(‘Type the value of E: ‘);
- F = input(‘Type the value of F: ‘);

**How do you find the inverse of a matrix in Matlab?**

## What does length function do in Matlab?

Description. L = length( X ) returns the length of the largest array dimension in X . For vectors, the length is simply the number of elements. For arrays with more dimensions, the length is max(size(X)) .

## What does Ind mean in MATLAB?

ind — Linear indices. scalar | vector | matrix | multidimensional array. Linear indices, specified as a scalar, vector, matrix, or multidimensional array. The size of ind is the same as the size of the input row , col , or I1,I2,…,In .

**What is the difference between SYM and Syms in MATLAB?**

These two functions are conceptually different. The syms function creates a symbolic object that is automatically assigned to a MATLAB® variable with the same name. The sym function refers to a symbolic object that can be assigned to a MATLAB variable with the same name or a different name.