# How do you do combinations in Matlab?

## How do you do combinations in Matlab?

C = combntns( v , k ) returns all possible combinations of the set of values v , given combinations of length k .

## How does Matlab calculate permutations and combinations?

Examples

- All Permutations of Double Integers. Copy Command Copy Code. v = [2 4 6]; P = perms(v)
- All Permutations of Unsigned Integers. Copy Command Copy Code. v = uint16([1023 4095 65535]); P = perms(v)
- All Permutations of Complex Numbers. Copy Command Copy Code. v = [1+1i 2+1i 3+1i]; P = perms(v)

**What is Nchoosek Matlab?**

b = nchoosek( n , k ) returns the binomial coefficient of n and k , defined as n!/(k!( n – k)!) . This is the number of combinations of n items taken k at a time. example. C = nchoosek( v , k ) returns a matrix containing all possible combinations of the elements of vector v taken k at a time.

### What does Ndgrid mean in Matlab?

The 1-D syntax, X = ndgrid(x) , returns a distributed array column vector X that contains the elements of the input distributed array x for use as a one-dimensional grid.

### What is Gamma in Matlab?

The gamma function is defined for real x > 0 by the integral: Γ ( x ) = ∫ 0 ∞ e − t t x − 1 d t. The gamma function interpolates the factorial function.

**What is the difference between Meshgrid and Ndgrid?**

Summary: NDGRID is to be used for higher dimensionality use and for when you want the results to reflect matrix/array notation: MESHGRID is to be used for visualizing data and should be used primarily for when plotting two or three dimensional data.

## What does Repmat do in Matlab?

Description. B = repmat( A , n ) returns an array containing n copies of A in the row and column dimensions. The size of B is size(A)*n when A is a matrix.

## What are some practical applications of combinatorics?

the enumeration (counting) of specified structures,sometimes referred to as arrangements or configurations in a very general sense,associated with finite systems,

**How many combinations can be made with four numbers?**

Using our combination calculator, you can calculate that there are 2,598,960 such combinations possible, therefore the chance of drawing a particular hand is 1 / 2,598,960. Here is a more visual example of how combinations work.

### How do you calculate number of combinations?

How do you calculate the number of possible combinations? To calculate combinations, we will use the formula nCr = n! / r! * (n – r)!, where n represents the number of items, and r represents the number of items being chosen at a time. To find the probability of an event, you may have to find the combinations.

### How to calculate combinations?

If you have a calculator available,find the factorial setting and use that to calculate the number of combinations.