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# cross

vector cross product

### Calling sequence

`C = cross(A,B)`

### Arguments

A

real, complex, polynomial or boolean matrix of size 3-by-N or 1-by-3.

B

real, complex, polynomial or boolean matrix of same size as A.

C

real, complex, polynomial or boolean matrix of same size as A and B.

### Description

`cross` returns the cross product of `A` and `B`, that is:

`A` and `B` can be full or sparse matrix. However, rational matrix are not supported. Concerning boolean matrix, `cross` computes as if %t (resp. %f) was 1 (resp. 0), and '&' (resp. '|') was '*' (resp. '+').

To finish, if `A` and `B` are 3-by-N matrix, column-wise computations are done.

### Example

```A=[1;2;3];
B=[2;3;4];
cross(A,B) //expected: [-1;2;-1]
A=[%i,2,1+%i];
B=[1,%i,2+%i];
cross(A,B) //expected: [5+%i,2-%i,-3]
A=[%t;%f;%t];
B=[%t;%f;%f];
cross(A,B) //expected: [0;1;0]```

### History

 Version Description 5.5.0 Function cross introduced.
 Report an issue << triu Opérations matricielles Chercher et trier >>

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