find the base 10 logarithm of a number in rust

You can find the base 10 logarithm of a number in Rust using the log10 method from the std::f64 module. Here's an example:

main.rs
fn main() {
    let num = 100.0;
    let log_base10 = num.log10();
    println!("log10({}) = {}", num, log_base10);
}
118 chars
6 lines

Output:

main.rs
log10(100) = 2
15 chars
2 lines

In this example, we first declare a floating-point number num. We then call the log10 method on the number, which returns its base 10 logarithm. Finally, we print out the result using println!.