The output size and input size should be the same if we use realsqrt (). So, if we want to view the result of a negative or complex number than it is preferable to use sqrt () function.
Unlike sqrt () function, it gives error messages when we pass input as a negative or complex number. If we want to find the square root of only positive integers in an array, then we can use realsqrt () function in Matlab.
Some operations differ in Matlab as compared to IEEE standard like the square root of negative zero is 0 in Matlab while it is -0 in IEEE, square root of values less than zero results in a complex number in Matlab while the same is not available in IEEE. In the above two examples, we see that the range consists of negative and positive numbers, so the output of it is a complex number. We know that is the input of an array is negative than it results in a complex number. If the input is complex or negative in nature, then it results in a complex number. They can also be positive, negative or complex in nature. The input arguments that are used in the function can be scalar, vector, array or multi-dimensional array. In Matlab, we use the sqrt () function to find the square root of a number or each element defined in an array. Matlab performs all mathematical functions, so there are also methods to find the square root of a number. Hadoop, Data Science, Statistics & others Working and Uses of Square Root in Matlab with Examples