take the absolute value of a number in rust

To take the absolute value of a number in Rust, you can use the built-in abs function defined in the std::num::Wrapping structure. Here's an example:

main.rs
fn main() {
    let num = -10;
    let result = num.abs();
    println!("The absolute value of {} is {}", num, result);
}
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This will output:

The absolute value of -10 is 10
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In this example, we define a variable num with the value -10. We then call the abs method on num, which returns the absolute value of num. Finally, we print out both the original value of num and its absolute value using println!.