diff --git a/kotlin/complex-numbers/src/main/kotlin/ComplexNumber.kt b/kotlin/complex-numbers/src/main/kotlin/ComplexNumber.kt
index c16aa51..48ff33b 100644
--- a/kotlin/complex-numbers/src/main/kotlin/ComplexNumber.kt
+++ b/kotlin/complex-numbers/src/main/kotlin/ComplexNumber.kt
@@ -43,11 +43,9 @@ data class ComplexNumber(val real: Double = 0.0, val imag: Double = 0.0){
     }
 }
 
-// This implementation is silly, there is no documentation for it
 fun exponential(num: ComplexNumber): ComplexNumber{
     val x = num.real
     val y = num.imag
 
-
-    return ComplexNumber(real = Math.pow(Math.E, x), imag = 1.0) * ComplexNumber(real = 1.0, imag = Math.pow(Math.E, y))
+    return ComplexNumber(real = Math.pow(Math.E, x), imag = 0.0) * ComplexNumber(real = Math.cos(y), imag = Math.sin(y))
 }
\ No newline at end of file
diff --git a/kotlin/complex-numbers/src/test/kotlin/ComplexNumberTest.kt b/kotlin/complex-numbers/src/test/kotlin/ComplexNumberTest.kt
index 0a554d8..272e1bd 100644
--- a/kotlin/complex-numbers/src/test/kotlin/ComplexNumberTest.kt
+++ b/kotlin/complex-numbers/src/test/kotlin/ComplexNumberTest.kt
@@ -31,7 +31,7 @@ class ComplexNumberTest {
         assertComplexNumbersEqual(expected, actual)
     }
 
-    @Ignore
+    
     @Test
     fun testAdditionWithPurelyRealNumbers() {
         val expected = ComplexNumber(real = 3.0)
@@ -39,7 +39,7 @@ class ComplexNumberTest {
         assertComplexNumbersEqual(expected, actual)
     }
 
-    @Ignore
+    
     @Test
     fun testAdditionWithPurelyImaginaryNumbers() {
         val expected = ComplexNumber(imag = 3.0)
@@ -47,7 +47,7 @@ class ComplexNumberTest {
         assertComplexNumbersEqual(expected, actual)
     }
 
-    @Ignore
+    
     @Test
     fun testAdditionWithRealAndImaginaryParts() {
         val expected = ComplexNumber(real = 4.0, imag = 6.0)
@@ -55,7 +55,7 @@ class ComplexNumberTest {
         assertComplexNumbersEqual(expected, actual)
     }
 
-    @Ignore
+    
     @Test
     fun testSubtractionWithPurelyRealNumbers() {
         val expected = ComplexNumber(real = -1.0, imag = 0.0)
@@ -63,7 +63,7 @@ class ComplexNumberTest {
         assertComplexNumbersEqual(expected, actual)
     }
 
-    @Ignore
+    
     @Test
     fun testSubtractionWithPurelyImaginaryNumbers() {
         val expected = ComplexNumber(imag = -1.0)
@@ -71,7 +71,7 @@ class ComplexNumberTest {
         assertComplexNumbersEqual(expected, actual)
     }
 
-    @Ignore
+    
     @Test
     fun testSubtractionWithRealAndImaginaryParts() {
         val expected = ComplexNumber(real = -2.0, imag = -2.0)
@@ -79,7 +79,7 @@ class ComplexNumberTest {
         assertComplexNumbersEqual(expected, actual)
     }
 
-    @Ignore
+    
     @Test
     fun testMultiplicationWithPurelyRealNumbers() {
         val expected = ComplexNumber(real = 2.0)
@@ -87,7 +87,7 @@ class ComplexNumberTest {
         assertComplexNumbersEqual(expected, actual)
     }
 
-    @Ignore
+    
     @Test
     fun testMultiplicationWithPurelyImaginaryNumbers() {
         val expected = ComplexNumber(real = -2.0)
@@ -95,7 +95,7 @@ class ComplexNumberTest {
         assertComplexNumbersEqual(expected, actual)
     }
 
-    @Ignore
+    
     @Test
     fun testMultiplicationWithRealAndImaginaryParts() {
         val expected = ComplexNumber(real = -5.0, imag = 10.0)
@@ -103,7 +103,7 @@ class ComplexNumberTest {
         assertComplexNumbersEqual(expected, actual)
     }
 
-    @Ignore
+    
     @Test
     fun testDivisionWithPurelyRealNumbers() {
         val expected = ComplexNumber(real = 0.5)
@@ -111,7 +111,7 @@ class ComplexNumberTest {
         assertComplexNumbersEqual(expected, actual)
     }
 
-    @Ignore
+    
     @Test
     fun testDivisionWithPurelyImaginaryNumbers() {
         val expected = ComplexNumber(real = 0.5)
@@ -119,7 +119,7 @@ class ComplexNumberTest {
         assertComplexNumbersEqual(expected, actual)
     }
 
-    @Ignore
+    
     @Test
     fun testDivisionWithRealAndImaginaryParts() {
         val expected = ComplexNumber(real = 0.44, imag = 0.08)
@@ -127,7 +127,7 @@ class ComplexNumberTest {
         assertComplexNumbersEqual(expected, actual)
     }
 
-    @Ignore
+    
     @Test
     fun testAbsoluteValueOfPositivePurelyRealNumber() {
         val expected = 5.0
@@ -135,7 +135,7 @@ class ComplexNumberTest {
         assertDoublesEqual(expected, actual)
     }
 
-    @Ignore
+    
     @Test
     fun testAbsoluteValueOfNegativePurelyRealNumber() {
         val expected = 5.0
@@ -143,7 +143,7 @@ class ComplexNumberTest {
         assertDoublesEqual(expected, actual)
     }
 
-    @Ignore
+    
     @Test
     fun testAbsoluteValueOfPurelyImaginaryNumberWithPositiveImaginaryPart() {
         val expected = 5.0
@@ -151,7 +151,7 @@ class ComplexNumberTest {
         assertDoublesEqual(expected, actual)
     }
 
-    @Ignore
+    
     @Test
     fun testAbsoluteValueOfPurelyImaginaryNumberWithNegativeImaginaryPart() {
         val expected = 5.0
@@ -159,7 +159,7 @@ class ComplexNumberTest {
         assertDoublesEqual(expected, actual)
     }
 
-    @Ignore
+    
     @Test
     fun testAbsoluteValueOfNumberWithRealAndImaginaryParts() {
         val expected = 5.0
@@ -167,7 +167,7 @@ class ComplexNumberTest {
         assertDoublesEqual(expected, actual)
     }
 
-    @Ignore
+    
     @Test
     fun testConjugationOfPurelyRealNumber() {
         val expected = ComplexNumber(real = 5.0)
@@ -175,7 +175,7 @@ class ComplexNumberTest {
         assertComplexNumbersEqual(expected, actual)
     }
 
-    @Ignore
+    
     @Test
     fun testConjugationOfPurelyImaginaryNumber() {
         val expected = ComplexNumber(imag = -5.0)
@@ -183,7 +183,7 @@ class ComplexNumberTest {
         assertComplexNumbersEqual(expected, actual)
     }
 
-    @Ignore
+    
     @Test
     fun testConjugationOfNumberWithRealAndImaginaryParts() {
         val expected = ComplexNumber(real = 1.0, imag = -1.0)
@@ -191,7 +191,7 @@ class ComplexNumberTest {
         assertComplexNumbersEqual(expected, actual)
     }
 
-    @Ignore
+    
     @Test
     fun testRealPartOfPurelyRealNumber() {
         val expected = 1.0
@@ -199,7 +199,7 @@ class ComplexNumberTest {
         assertDoublesEqual(expected, actual)
     }
 
-    @Ignore
+    
     @Test
     fun testRealPartOfPurelyImaginaryNumber() {
         val expected = 0.0
@@ -207,7 +207,7 @@ class ComplexNumberTest {
         assertDoublesEqual(expected, actual)
     }
 
-    @Ignore
+    
     @Test
     fun testRealPartOfNumberWithRealAndImaginaryParts() {
         val expected = 1.0
@@ -215,7 +215,7 @@ class ComplexNumberTest {
         assertDoublesEqual(expected, actual)
     }
 
-    @Ignore
+    
     @Test
     fun testImaginaryPartOfPurelyRealNumber() {
         val expected = 0.0
@@ -223,7 +223,7 @@ class ComplexNumberTest {
         assertDoublesEqual(expected, actual)
     }
 
-    @Ignore
+    
     @Test
     fun testImaginaryPartOfPurelyImaginaryNumber() {
         val expected = 1.0
@@ -231,7 +231,7 @@ class ComplexNumberTest {
         assertDoublesEqual(expected, actual)
     }
 
-    @Ignore
+    
     @Test
     fun testImaginaryPartOfNumberWithRealAndImaginaryParts() {
         val expected = 2.0
@@ -239,7 +239,7 @@ class ComplexNumberTest {
         assertDoublesEqual(expected, actual)
     }
 
-    @Ignore
+    
     @Test
     fun testExponentialOfPurelyImaginaryNumber() {
         val expected = ComplexNumber(real = -1.0)
@@ -247,7 +247,7 @@ class ComplexNumberTest {
         assertComplexNumbersEqual(expected, actual)
     }
 
-    @Ignore
+    
     @Test
     fun testExponentialOfZero() {
         val expected = ComplexNumber(real = 1.0)
@@ -255,7 +255,7 @@ class ComplexNumberTest {
         assertComplexNumbersEqual(expected, actual)
     }
 
-    @Ignore
+    
     @Test
     fun testExponentialOfPurelyRealNumber() {
         val expected = ComplexNumber(real = Math.E)