# ismatrix

determines whether input is matrix or not

## 📝 Syntaxe

* TF = ismatrix(A)

## 📥 Argument d'entrée

* A - input array as a scalar, vector, matrix, or multidimensional array.

## 📤 Argument de sortie

* TF - a logical: true if it is a matrix.

## 📄 Description

TF = ismatrix(A) returns true if A is a matrix.

A matrix is a two-dimensional array that has a size of m-by-n, where m and n are nonnegative integers.

## 💡 Exemple

```matlab
x = [1+i,-i;i,2i];
ismatrix(x)
ismatrix(ones(3,1,2))
```

## 🔗 Voir aussi

[isvector](https://nelson-9.gitbook.io/nelson/markdown/fr/elementary_functions/isvector).

## 🕔 Historique

| Version | 📄 Description   |
| ------- | ---------------- |
| 1.0.0   | version initiale |
