To get the square root of a number in Julia, you need to use the sqrt() function.
Here's an example:
number = 25
sqrt(number)
The output would be:
5.0
Note that Julia returns a floating-point value even if the input is an integer.
You can also calculate the square root of an array of numbers using the same function:
array = [16, 25, 36, 49]
sqrt.(array)
The output would be:
4.0, 5.0, 6.0, 7.0
The . after sqrt is known as the broadcasting operator. It applies the function to each element of the array.