# Kotlin Program to Find Transpose of a Matrix

#### In this program, you’ll learn to find and print the transpose of a given matrix in Kotlin.

Transpose of a matrix is the process of swapping the rows to columns. For 2×3 matrix,

```Matrix
a11    a12    a13
a21    a22    a23

Transposed Matrix
a11    a21
a12    a22
a13    a23```

## Example: Program to Find Transpose of a Matrix

``````
fun main(args: Array<String>) {
val row = 2
val column = 3
val matrix = arrayOf(intArrayOf(2, 3, 4), intArrayOf(5, 6, 4))

// Display current matrix
display(matrix)

// Transpose the matrix
val transpose = Array(column) { IntArray(row) }
for (i in 0..row - 1) {
for (j in 0..column - 1) {
transpose[j][i] = matrix[i][j]
}
}

// Display transposed matrix
display(transpose)
}

fun display(matrix: Array) {
println("The matrix is: ")
for (row in matrix) {
for (column in row) {
print("\$column    ")
}
println()
}
}``````

When you run the program, the output will be:

```The matrix is:
2    3    4
5    6    4
The matrix is:
2    5
3    6
4    4    ```

In the above program, `display()` function is only used to print the contents of a matrix to the screen.

Here, the given matrix is of form `2x3`, i.e. `row = 2` and `column = 3`.

For the transposed matrix, we change the order of transposed to `3x2`, i.e. `row = 3` and `column = 2`. So, we have `transpose = int[column][row]`

The transpose of the matrix is calculated by simply swapping columns to rows:

`transpose[j][i] = matrix[i][j]`

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