feat: extends interface of Matrix to support for broad range of types

src/math/mod.rs

@@ -1,44 +1,2 @@
 pub mod distance;
-
-pub static EPSILON:f64 = 2.2204460492503131e-16_f64;
-
-pub trait NumericExt {
-    fn ln_1pe(&self) -> f64;
-    fn sigmoid(&self) -> f64;
-}
-
-impl NumericExt for f64 {
-
-    fn ln_1pe(&self) -> f64{        
-        if *self > 15. {
-            return *self;
-        } else {
-            return self.exp().ln_1p();
-        }
-
-    }
-
-    fn sigmoid(&self) -> f64 {
-        
-        if *self < -40. {
-            return 0.;
-        } else if *self > 40. {
-            return 1.;
-        } else {
-            return 1. / (1. + f64::exp(-self))
-        }
-        
-    }
-}
-
-#[cfg(test)]
-mod tests {    
-    use super::*;     
-
-    #[test]
-    fn sigmoid() { 
-        assert_eq!(1.0.sigmoid(), 0.7310585786300049);
-        assert_eq!(41.0.sigmoid(), 1.);
-        assert_eq!((-41.0).sigmoid(), 0.);
-    }
-}
+pub mod num;