## How do I use Bsxfun in MATLAB?

With these functions, you can call the function or operator directly instead of using bsxfun . For example, you can replace C = bsxfun(@plus,A,B) with A+B ….fun — Binary function to apply. function handle.

Function | Symbol | Description |
---|---|---|

plus | + | Plus |

minus | – | Minus |

times | .* | Array multiply |

rdivide | ./ | Right array divide |

## Is Bsxfun faster?

In this case bsxfun is almost twice faster! It is useful and fast because it avoids explicit allocation of memory for matrices idx0 and idx1 , saving them to the memory, and then reading them again just to add them.

**How do you multiply all elements of a matrix in MATLAB?**

B = prod( A ) returns the product of the array elements of A .

- If A is a vector, then prod(A) returns the product of the elements.
- If A is a nonempty matrix, then prod(A) treats the columns of A as vectors and returns a row vector of the products of each column.
- If A is an empty 0-by-0 matrix, prod(A) returns 1 .

**How do I use Bsxfun in octave?**

The function f must be capable of accepting two column-vector arguments of equal length, or one column vector argument and a scalar. The dimensions of A and B must be equal or singleton. The singleton dimensions of the arrays will be expanded to the same dimensionality as the other array. See also: arrayfun, cellfun.

### What does Bsxfun stand for?

Binary FUNction

The name bsxfun helps to understand how the function works and it stands for Binary FUNction with Singleton eXpansion. In other words, if: two arrays share the same dimensions except for one. and the discordant dimension is a singleton (i.e. has a size of 1 ) in either of the two arrays.

### Are multiplication works if the two operands?

Array multiplication works if the two operands point are vectors.

**How does Cellfun work Matlab?**

Description. A = cellfun( func , C ) applies the function func to the contents of each cell of cell array C , one cell at a time. cellfun then concatenates the outputs from func into the output array A , so that for the i th element of C , A(i) = func(C{i}) . The array A and cell array C have the same size.

**How do you multiply all the elements in a matrix?**

Matrix Multiplication

- When you multiply a matrix by a number, you multiply every element in the matrix by the same number.
- For example, if x is 5, and the matrix A is:
- Then, xA = 5A and.
- In the example above, every element of A is multiplied by 5 to produce the scalar multiple, B.

## What is Bsxfun octave?

: bsxfun ( f , A , B ) The binary singleton expansion function performs broadcasting, that is, it applies a binary function f element-by-element to two array arguments A and B , and expands as necessary singleton dimensions in either input argument.

## How do you make a dot product in MATLAB?

C = dot( A,B ) returns the scalar dot product of A and B .

- If A and B are vectors, then they must have the same length.
- If A and B are matrices or multidimensional arrays, then they must have the same size. In this case, the dot function treats A and B as collections of vectors.

**How do you use bsxfun in MATLAB?**

Create a function handle that represents the function . Use bsxfun to apply the function to vectors a and b. The bsxfun function expands the vectors into matrices of the same size, which is an efficient way to evaluate fun for many combinations of the inputs.

**What is the bsxfun of a matrix?**

The bsxfun function expands the vectors into matrices of the same size, which is an efficient way to evaluate fun for many combinations of the inputs. a = 1:7; b = pi* [0 1/4 1/3 1/2 2/3 3/4 1].’; C = bsxfun (fun,a,b)

### How do you do matrix multiplication with a nonscalar input?

You can write this definition using the MATLAB ® colon operator as For nonscalar A and B, the number of columns of A must equal the number of rows of B . Matrix multiplication is not universally commutative for nonscalar inputs.

### What is the use of bsxfun in C?

C = bsxfun (fun,A,B) applies the element-wise binary operation specified by the function handle fun to arrays A and B. Subtract the column mean from the corresponding column elements of a matrix A.