signum() returns the Sign function of a value passed to it as argument. The signum() function returns the following values depending on the argument passed to it: If the argument passed is greater than zero, then the signum() function will return 1.0.

How does the signum function work?

What Is Signum Function? The signum function simply gives the sign for the given values of x. For x value greater than zero, the value of the output is +1, for x value lesser than zero, the value of the output is -1, and for x value equal to zero, the output is equal to zero.

What does Integer signum do?

Integer signum() Method in Java. The signum function is an odd mathematical function that extracts the sign of a real number.