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sign() Function with Example in Julia

Julia | sign() function: In this tutorial, we are going to learn about the sign() function with example in the Julia programming language.
Submitted by IncludeHelp, on April 04, 2020

Julia | sign() function

sign() function is a library function in Julia programming language, it returns the sign of the given value in the form of -1/+1.

Note: If the value is 0, it returns 0.

Syntax:

    sign(val)

Parameter(s):

• val – represents a signed integer/value, whose sign (-1 or +1) to be found.

Return value:

The return type of this method is Int64, it returns the -1 or +1 for the val.

Example:

    Input:
    val = 0
    Output:
    sign(val): 0

    Input:
    val = -10
    Output:
    sign(val): -1

    Input:
    val = 10
    sign(val): +1

Program:

# sign() Function with Example in Julia

val = 0
println("val: ", val)
println("sign(val): ", sign(val))

val = 10
println("val: ", val)
println("sign(val): ", sign(val))

val = -10
println("val: ", val)
println("sign(val): ", sign(val))

val = 10.23
println("val: ", val)
println("sign(val): ", sign(val))

val = -10.23
println("val: ", val)
println("sign(val): ", sign(val))

# printing the return type of sign()
println("typeof(sign(-10)): ", typeof(sign(-10)))

Output

val: 0
sign(val): 0
val: 10
sign(val): 1
val: -10
sign(val): -1
val: 10.23
sign(val): 1.0
val: -10.23
sign(val): -1.0
typeof(sign(-10)): Int64