Initial data commit

Task/Nth-root/Rust/nth-root.rust

@@ -0,0 +1,17 @@
+// 20210212 Rust programming solution
+
+fn nthRoot(n: f64, A: f64) -> f64 {
+
+   let      p  =  1e-9_f64 ;
+   let mut x0  =     A / n ;
+
+   loop {
+      let mut x1 = ( (n-1.0) * x0 + A / f64::powf(x0, n-1.0) ) / n;
+      if (x1-x0).abs() < (x0*p).abs() { return x1 };
+      x0 = x1
+   }
+}
+
+fn main() {
+   println!("{}", nthRoot(3. , 8. ));
+}