solve complex numbers

rootulp · Nov 28, 2023 · f4a15c1 · f4a15c1
1 parent f5eff66
commit f4a15c1
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Showing 2 changed files with 14 additions and 11 deletions.
diff --git a/go/complex-numbers/complex_numbers.go b/go/complex-numbers/complex_numbers.go
@@ -63,5 +63,8 @@ func (n Number) Abs() float64 {
 }
 
 func (n Number) Exp() Number {
-	panic("Please implement the Exp method")
+	return Number{
+		a: math.Pow(math.E, n.a) * math.Cos(n.b),
+		b: math.Pow(math.E, n.a) * math.Sin(n.b),
+	}
 }
diff --git a/go/complex-numbers/complex_numbers_test.go b/go/complex-numbers/complex_numbers_test.go
@@ -122,13 +122,13 @@ func TestNumber_Conjugate(t *testing.T) {
 	}
 }
 
-// func TestNumber_Exp(t *testing.T) {
-// 	for _, tt := range expTestCases {
-// 		t.Run(tt.description, func(t *testing.T) {
-// 			n := Number{tt.in.a, tt.in.b}
-// 			if got := n.Exp(); !floatingPointEquals(got.Real(), tt.want.a) || !floatingPointEquals(got.Imaginary(), tt.want.b) {
-// 				t.Errorf("Number%+v.Exp()\n got: %+v\nwant: %+v", tt.in, got, tt.want)
-// 			}
-// 		})
-// 	}
-// }
+func TestNumber_Exp(t *testing.T) {
+	for _, tt := range expTestCases {
+		t.Run(tt.description, func(t *testing.T) {
+			n := Number{tt.in.a, tt.in.b}
+			if got := n.Exp(); !floatingPointEquals(got.Real(), tt.want.a) || !floatingPointEquals(got.Imaginary(), tt.want.b) {
+				t.Errorf("Number%+v.Exp()\n got: %+v\nwant: %+v", tt.in, got, tt.want)
+			}
+		})
+	}
+}