find the volume of a sphere in rust

To find the volume of a sphere in Rust, we need to use the following formula:

main.rs
volume = (4/3) * pi * radius^3
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Where pi is a mathematical constant with a value of approximately 3.14159, and radius is the distance from the center of the sphere to its edge.

Here's the code to calculate the volume of a sphere in Rust:

main.rs
fn main() {
    let radius = 5.0; // example radius
    let pi = 3.14159; // constant value of pi
    let volume = (4.0/3.0) * pi * radius.powf(3.0); // calculate volume
    println!("The volume of the sphere is: {}", volume);
}
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In this code, we initialize the radius and pi variables with example values. Then, we use the formula to calculate the volume variable. Finally, we print the volume using println! macro.

Note that we use the .powf() method to raise the radius variable to the power of 3.0. This method calculates the exponentiation of a floating point number.