21.1.2.2 验证正切(tan)等于正弦(sin)除以余弦(cos)

std-badge cat-science-badge

验证 tan(x) 是否等于 sin(x)/cos(x),其中 x=6。

fn main() {
    let x: f64 = 6.0;

    let a = x.tan();
    let b = x.sin() / x.cos();

    assert_eq!(a, b);
}