_f32 is https://doc.rust-lang.org/std/primitive.f32.html https://doc.rust-lang.org/std/primitive.f32.html _f64 is https://doc.rust-lang.org/std/primitive.f64.ht

_f32 is https://doc.rust-lang.org/std/primitive.f32.html https://doc.rust-lang.org/std/primitive.f32.html _f64 is https://doc.rust-lang.org/std/primitive.f64.html https://doc.rust-lang.org/std/primitive.f64.html