Question

How to get the first digit after the decimal point of a float number in Rust

Answer 1

fn main() {
    let f = 983.6571_f32;
    
    let first_digit_after_decimal_point = ((f.abs() * 10.0) as i32 % 10) as u32;
    
    println!("{}", first_digit_after_decimal_point);
}



      
/*
run:
  
6

*/

 

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