increase f16 APPROX threshold to 2e-3

Author: karolzwolak

library/coretests/tests/floats/mod.rs

@@ -25,7 +25,7 @@ trait TestableFloat {
 
 impl TestableFloat for f16 {
     type Int = u16;
-    const APPROX: Self = 1e-3;
+    const APPROX: Self = 2e-3;
     const ZERO: Self = 0.0;
     const ONE: Self = 1.0;
     const PI: Self = std::f16::consts::PI;
@@ -1422,7 +1422,7 @@ float_test! {
         assert_biteq!((0.0 as Float).to_radians(), 0.0);
         assert_approx_eq!((154.6 as Float).to_radians(), 2.6982790235832334267135442069489767804);
         assert_approx_eq!((-332.31 as Float).to_radians(), -5.7999036373023566567593094812182763013);
-        assert_approx_eq!((180.0 as Float).to_radians(), pi, 0.002); // minimal f16 rounding tolerance
+        assert_approx_eq!((180.0 as Float).to_radians(), pi);
         assert!(nan.to_radians().is_nan());
         assert_biteq!(inf.to_radians(), inf);
         assert_biteq!(neg_inf.to_radians(), neg_inf);