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我正在实现sin三角函数的CORDIC算法.为了做到这一点,我需要硬编码/计算一堆反正切值.现在我的功能似乎可以工作(由Wolfram Alpha验证)到打印的精度,但我希望能够打印我的所有32位精度f32.我该怎么办？

fn generate_table() {
    let pi: f32 = 3.1415926536897932384626;
    let k1: f32 = 0.6072529350088812561694; // 1/k
    let num_bits: uint = 32;
    let num_elms: uint = num_bits;
    let mul: uint = 1 << (num_bits - 2);

    println!("Cordic sin in rust");
    println!("num bits {}", num_bits);
    println!("pi is {}", pi);
    println!("k1 is {}", k1);

    let shift: f32 = 2.0;
    for ii in range(0, num_bits) {
        let ipow: f32 = 1.0 / shift.powi(ii as i32);
        let cur: …