How to round a floating point number to a specified number of decimal places in Rust?

Hello everyone! I'm new to Rust and encountered a problem when working with floating point numbers. I need to round an f64 value to a certain number of decimal places, for example, to 2 decimal places for displaying a price in dollars.\n\nIn Python I'm used to using `round(3.14159, 2)` and getting 3.14. In JavaScript there is `toFixed(2)`. But in Rust I haven't found anything similar in the standard library. I tried writing this code:\n\n```rust\nfn main() {\n let price = 19.995;\n let rounded_price = price.round(); // This rounds to an integer\n println!("{}", rounded_price); // Outputs 20\n}\n```\n\nBut `round()` only rounds to an integer. I need to round to two decimal places: `19.995 → 20.00` or `3.14159 → 3.14`. I tried multiplying by 100, rounding, and dividing back, but got a str