33 lines
839 B
Rust
33 lines
839 B
Rust
extern crate nalgebra as na;
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use alga::general::{RealField, RingCommutative};
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use na::{Scalar, Vector3};
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fn print_vector<N: Scalar>(m: &Vector3<N>) {
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println!("{:?}", m)
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}
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fn print_squared_norm<N: Scalar + RingCommutative>(v: &Vector3<N>) {
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// NOTE: alternatively, nalgebra already defines `v.squared_norm()`.
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let sqnorm = v.dot(v);
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println!("{:?}", sqnorm);
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}
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fn print_norm<N: RealField>(v: &Vector3<N>) {
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// NOTE: alternatively, nalgebra already defines `v.norm()`.
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let norm = v.dot(v).sqrt();
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// The RealField bound implies that N is Display so we can
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// use "{}" instead of "{:?}" for the format string.
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println!("{}", norm)
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}
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fn main() {
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let v1 = Vector3::new(1, 2, 3);
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let v2 = Vector3::new(1.0, 2.0, 3.0);
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print_vector(&v1);
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print_squared_norm(&v1);
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print_norm(&v2);
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}
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