move Complex logic to cmath

It was causing problems with cross compiling for Linux, and it should be
a separate module anyway, just like in Go and Python.

vlib/cmath/complex.v

@@ -2,7 +2,9 @@
 // Use of this source code is governed by an MIT license
 // that can be found in the LICENSE file.
 
-module math
+module cmath
+
+import math 
 
 struct Complex {
 	re f64
@@ -38,7 +40,7 @@ pub fn (c Complex) mod() f64 {
 
 // Complex Angle
 pub fn (c Complex) angle() f64 { 
-	return atan2(c.im, c.re)
+	return math.atan2(c.im, c.re)
 }
 
 // Complex Addition c1 + c2
@@ -123,11 +125,11 @@ pub fn (c Complex) mulinv() Complex {
 // Based on
 // https://www.khanacademy.org/math/precalculus/imaginary-and-complex-numbers/multiplying-and-dividing-complex-numbers-in-polar-form/a/complex-number-polar-form-review
 pub fn (c Complex) pow(n f64) Complex {
-	r := pow(c.abs(), n)
+	r := math.pow(c.abs(), n)
 	angle := c.angle()
 	return Complex {
-		r * cos(n * angle),
+		r * math.cos(n * angle),
-		r * sin(n * angle)
+		r * math.sin(n * angle)
 	}
 }
 
@@ -141,10 +143,10 @@ pub fn (c Complex) root(n f64) Complex {
 // Based on
 // https://www.math.wisc.edu/~angenent/Free-Lecture-Notes/freecomplexnumbers.pdf
 pub fn (c Complex) exp() Complex {
-	a := exp(c.re)
+	a := math.exp(c.re)
 	return Complex {
-		a * cos(c.im),
+		a * math.cos(c.im), 
-		a * sin(c.im)
+		a * math.sin(c.im)
 	}
 }
 
@@ -153,7 +155,7 @@ pub fn (c Complex) exp() Complex {
 // http://www.chemistrylearning.com/logarithm-of-complex-number/
 pub fn (c Complex) ln() Complex {
 	return Complex {
-		log(c.abs()),
+		math.log(c.abs()),
 		c.angle()
 	}
 }
@@ -163,8 +165,8 @@ pub fn (c Complex) ln() Complex {
 // http://www.milefoot.com/math/complex/functionsofi.htm
 pub fn (c Complex) sin() Complex {
 	return Complex{
-		sin(c.re) * cosh(c.im),
+		math.sin(c.re) * math.cosh(c.im),
-		cos(c.re) * sinh(c.im)
+		math.cos(c.re) * math.sinh(c.im)
 	}
 }
 
@@ -173,8 +175,8 @@ pub fn (c Complex) sin() Complex {
 // http://www.milefoot.com/math/complex/functionsofi.htm
 pub fn (c Complex) cos() Complex {
 	return Complex{
-		cos(c.re) * cosh(c.im),
+		math.cos(c.re) * math.cosh(c.im),
-		-(sin(c.re) * sinh(c.im))
+		-(math.sin(c.re) * math.sinh(c.im))
 	}
 }
 
@@ -190,8 +192,8 @@ pub fn (c Complex) tan() Complex {
 // http://www.milefoot.com/math/complex/functionsofi.htm
 pub fn (c Complex) sinh() Complex {
 	return Complex{
-		cos(c.im) * sinh(c.re),
+		math.cos(c.im) * math.sinh(c.re),
-		sin(c.im) * cosh(c.re)
+		math.sin(c.im) * math.cosh(c.re)
 	}
 }
 
@@ -200,8 +202,8 @@ pub fn (c Complex) sinh() Complex {
 // http://www.milefoot.com/math/complex/functionsofi.htm
 pub fn (c Complex) cosh() Complex {
 	return Complex{
-		cos(c.im) * cosh(c.re),
+		math.cos(c.im) * math.cosh(c.re),
-		sin(c.im) * sinh(c.re)
+		math.sin(c.im) * math.sinh(c.re)
 	}
 }
 

vlib/cmath/complex_test.v

@@ -1,128 +1,129 @@
 import math 
+import cmath
 
 // Tests are based on and verified from practice examples of Khan Academy 
 // https://www.khanacademy.org/math/precalculus/imaginary-and-complex-numbers
 
 fn test_complex_addition() {
-	mut c1 := math.complex(0,-10)
+	mut c1 := cmath.complex(0,-10)
-	mut c2 := math.complex(-40,8)
+	mut c2 := cmath.complex(-40,8)
 	mut result := c1 + c2
-	assert result.equals(math.complex(-40,-2))
+	assert result.equals(cmath.complex(-40,-2))
-	c1 = math.complex(-71,2)
+	c1 = cmath.complex(-71,2)
-	c2 = math.complex(88,-12)
+	c2 = cmath.complex(88,-12)
 	result = c1 + c2
-	assert result.equals(math.complex(17,-10))
+	assert result.equals(cmath.complex(17,-10))
-	c1 = math.complex(0,-30)
+	c1 = cmath.complex(0,-30)
-	c2 = math.complex(52,-30)
+	c2 = cmath.complex(52,-30)
 	result = c1 + c2
-	assert result.equals(math.complex(52,-60))
+	assert result.equals(cmath.complex(52,-60))
-	c1 = math.complex(12,-9)
+	c1 = cmath.complex(12,-9)
-	c2 = math.complex(32,-6)
+	c2 = cmath.complex(32,-6)
 	result = c1 + c2
-	assert result.equals(math.complex(44,-15))
+	assert result.equals(cmath.complex(44,-15))
 }
 
 fn test_complex_subtraction() {
-	mut c1 := math.complex(-8,0)
+	mut c1 := cmath.complex(-8,0)
-	mut c2 := math.complex(6,30)
+	mut c2 := cmath.complex(6,30)
 	mut result := c1 - c2
-	assert result.equals(math.complex(-14,-30))
+	assert result.equals(cmath.complex(-14,-30))
-	c1 = math.complex(-19,7)
+	c1 = cmath.complex(-19,7)
-	c2 = math.complex(29,32)
+	c2 = cmath.complex(29,32)
 	result = c1 - c2
-	assert result.equals(math.complex(-48,-25))
+	assert result.equals(cmath.complex(-48,-25))
-	c1 = math.complex(12,0)
+	c1 = cmath.complex(12,0)
-	c2 = math.complex(23,13)
+	c2 = cmath.complex(23,13)
 	result = c1 - c2
-	assert result.equals(math.complex(-11,-13))
+	assert result.equals(cmath.complex(-11,-13))
-	c1 = math.complex(-14,3)
+	c1 = cmath.complex(-14,3)
-	c2 = math.complex(0,14)
+	c2 = cmath.complex(0,14)
 	result = c1 - c2
-	assert result.equals(math.complex(-14,-11))
+	assert result.equals(cmath.complex(-14,-11))
 }
 
 fn test_complex_multiplication() {
-	mut c1 := math.complex(1,2)
+	mut c1 := cmath.complex(1,2)
-	mut c2 := math.complex(1,-4)
+	mut c2 := cmath.complex(1,-4)
 	mut result := c1.multiply(c2)
-	assert result.equals(math.complex(9,-2))
+	assert result.equals(cmath.complex(9,-2))
-	c1 = math.complex(-4,-4)
+	c1 = cmath.complex(-4,-4)
-	c2 = math.complex(-5,-3)
+	c2 = cmath.complex(-5,-3)
 	result = c1.multiply(c2)
-	assert result.equals(math.complex(8,32))
+	assert result.equals(cmath.complex(8,32))
-	c1 = math.complex(4,4)
+	c1 = cmath.complex(4,4)
-	c2 = math.complex(-2,-5)
+	c2 = cmath.complex(-2,-5)
 	result = c1.multiply(c2)
-	assert result.equals(math.complex(12,-28))
+	assert result.equals(cmath.complex(12,-28))
-	c1 = math.complex(2,-2)
+	c1 = cmath.complex(2,-2)
-	c2 = math.complex(4,-4)
+	c2 = cmath.complex(4,-4)
 	result = c1.multiply(c2)
-	assert result.equals(math.complex(0,-16))
+	assert result.equals(cmath.complex(0,-16))
 }
 
 fn test_complex_division() {
-	mut c1 := math.complex(-9,-6)
+	mut c1 := cmath.complex(-9,-6)
-	mut c2 := math.complex(-3,-2)
+	mut c2 := cmath.complex(-3,-2)
 	mut result := c1.divide(c2)
-	assert result.equals(math.complex(3,0))
+	assert result.equals(cmath.complex(3,0))
-	c1 = math.complex(-23,11)
+	c1 = cmath.complex(-23,11)
-	c2 = math.complex(5,1)
+	c2 = cmath.complex(5,1)
 	result = c1.divide(c2)
-	assert result.equals(math.complex(-4,3))
+	assert result.equals(cmath.complex(-4,3))
-	c1 = math.complex(8,-2)
+	c1 = cmath.complex(8,-2)
-	c2 = math.complex(-4,1)
+	c2 = cmath.complex(-4,1)
 	result = c1.divide(c2)
-	assert result.equals(math.complex(-2,0))
+	assert result.equals(cmath.complex(-2,0))
-	c1 = math.complex(11,24)
+	c1 = cmath.complex(11,24)
-	c2 = math.complex(-4,-1)
+	c2 = cmath.complex(-4,-1)
 	result = c1.divide(c2)
-	assert result.equals(math.complex(-4,-5))
+	assert result.equals(cmath.complex(-4,-5))
 }
 
 fn test_complex_conjugate() {
-	mut c1 := math.complex(0,8)
+	mut c1 := cmath.complex(0,8)
 	mut result := c1.conjugate()
-	assert result.equals(math.complex(0,-8))
+	assert result.equals(cmath.complex(0,-8))
-	c1 = math.complex(7,3)
+	c1 = cmath.complex(7,3)
 	result = c1.conjugate()
-	assert result.equals(math.complex(7,-3))
+	assert result.equals(cmath.complex(7,-3))
-	c1 = math.complex(2,2)
+	c1 = cmath.complex(2,2)
 	result = c1.conjugate()
-	assert result.equals(math.complex(2,-2))
+	assert result.equals(cmath.complex(2,-2))
-	c1 = math.complex(7,0)
+	c1 = cmath.complex(7,0)
 	result = c1.conjugate()
-	assert result.equals(math.complex(7,0))
+	assert result.equals(cmath.complex(7,0))
 }
 
 fn test_complex_equals() {
-	mut c1 := math.complex(0,8)
+	mut c1 := cmath.complex(0,8)
-	mut c2 := math.complex(0,8)
+	mut c2 := cmath.complex(0,8)
 	assert c1.equals(c2)
-	c1 = math.complex(-3,19)
+	c1 = cmath.complex(-3,19)
-	c2 = math.complex(-3,19)
+	c2 = cmath.complex(-3,19)
 	assert c1.equals(c2)
 }
 
 fn test_complex_abs() {
-	mut c1 := math.complex(3,4)
+	mut c1 := cmath.complex(3,4)
 	assert c1.abs() == 5
-	c1 = math.complex(1,2)
+	c1 = cmath.complex(1,2)
 	assert c1.abs() == math.sqrt(5)
 	assert c1.abs() == c1.conjugate().abs()
-	c1 = math.complex(7,0)
+	c1 = cmath.complex(7,0)
 	assert c1.abs() == 7
 }
 
 fn test_complex_angle(){
-	mut c := math.complex(1, 0)
+	mut c := cmath.complex(1, 0)
 	assert c.angle() * 180 / math.Pi == 0
-	c = math.complex(1, 1)
+	c = cmath.complex(1, 1)
 	assert c.angle() * 180 / math.Pi == 45
-	c = math.complex(0, 1)
+	c = cmath.complex(0, 1)
 	assert c.angle() * 180 / math.Pi == 90
-	c = math.complex(-1, 1)
+	c = cmath.complex(-1, 1)
 	assert c.angle() * 180 / math.Pi == 135
-	c = math.complex(-1, -1)
+	c = cmath.complex(-1, -1)
 	assert c.angle() * 180 / math.Pi == -135
 	mut cc := c.conjugate()
 	assert cc.angle() + c.angle() == 0
@@ -131,47 +132,47 @@ fn test_complex_angle(){
 
 fn test_complex_addinv() {
 	// Tests were also verified on Wolfram Alpha
-	mut c1 := math.complex(5,7)
+	mut c1 := cmath.complex(5,7)
-	mut c2 := math.complex(-5,-7)
+	mut c2 := cmath.complex(-5,-7)
 	mut result := c1.addinv()
 	assert result.equals(c2)
-	c1 = math.complex(-3,4)
+	c1 = cmath.complex(-3,4)
-	c2 = math.complex(3,-4)
+	c2 = cmath.complex(3,-4)
 	result = c1.addinv()
 	assert result.equals(c2)
-	c1 = math.complex(-1,-2)
+	c1 = cmath.complex(-1,-2)
-	c2 = math.complex(1,2)
+	c2 = cmath.complex(1,2)
 	result = c1.addinv()
 	assert result.equals(c2)
 }
 
 fn test_complex_mulinv() {
 	// Tests were also verified on Wolfram Alpha
-	mut c1 := math.complex(5,7)
+	mut c1 := cmath.complex(5,7)
-	mut c2 := math.complex(0.067568,-0.094595)
+	mut c2 := cmath.complex(0.067568,-0.094595)
 	mut result := c1.mulinv()
 	// Some issue with precision comparison in f64 using == operator hence serializing to string
 	assert result.str().eq(c2.str())
-	c1 = math.complex(-3,4)
+	c1 = cmath.complex(-3,4)
-	c2 = math.complex(-0.12,-0.16)
+	c2 = cmath.complex(-0.12,-0.16)
 	result = c1.mulinv()
 	assert result.str().eq(c2.str())
-	c1 = math.complex(-1,-2)
+	c1 = cmath.complex(-1,-2)
-	c2 = math.complex(-0.2,0.4)
+	c2 = cmath.complex(-0.2,0.4)
 	result = c1.mulinv()
 	assert result.equals(c2)
 }
 
 fn test_complex_mod() {
 	// Tests were also verified on Wolfram Alpha
-	mut c1 := math.complex(5,7)
+	mut c1 := cmath.complex(5,7)
 	mut result := c1.mod()
 	// Some issue with precision comparison in f64 using == operator hence serializing to string
 	assert result.str().eq('8.602325')
-	c1 = math.complex(-3,4)
+	c1 = cmath.complex(-3,4)
 	result = c1.mod()
 	assert result == 5
-	c1 = math.complex(-1,-2)
+	c1 = cmath.complex(-1,-2)
 	result = c1.mod()
 	// Some issue with precision comparison in f64 using == operator hence serializing to string
 	assert result.str().eq('2.236068')
@@ -179,18 +180,18 @@ fn test_complex_mod() {
 
 fn test_complex_pow() {
 	// Tests were also verified on Wolfram Alpha
-	mut c1 := math.complex(5,7)
+	mut c1 := cmath.complex(5,7)
-	mut c2 := math.complex(-24.0,70.0)
+	mut c2 := cmath.complex(-24.0,70.0)
 	mut result := c1.pow(2)
 	// Some issue with precision comparison in f64 using == operator hence serializing to string
 	assert result.str().eq(c2.str())
-	c1 = math.complex(-3,4)
+	c1 = cmath.complex(-3,4)
-	c2 = math.complex(117,44)
+	c2 = cmath.complex(117,44)
 	result = c1.pow(3)
 	// Some issue with precision comparison in f64 using == operator hence serializing to string
 	assert result.str().eq(c2.str())
-	c1 = math.complex(-1,-2)
+	c1 = cmath.complex(-1,-2)
-	c2 = math.complex(-7,-24)
+	c2 = cmath.complex(-7,-24)
 	result = c1.pow(4)
 	// Some issue with precision comparison in f64 using == operator hence serializing to string
 	assert result.str().eq(c2.str())
@@ -198,18 +199,18 @@ fn test_complex_pow() {
 
 fn test_complex_root() {
 	// Tests were also verified on Wolfram Alpha
-	mut c1 := math.complex(5,7)
+	mut c1 := cmath.complex(5,7)
-	mut c2 := math.complex(2.607904,1.342074)
+	mut c2 := cmath.complex(2.607904,1.342074)
 	mut result := c1.root(2)
 	// Some issue with precision comparison in f64 using == operator hence serializing to string
 	assert result.str().eq(c2.str())
-	c1 = math.complex(-3,4)
+	c1 = cmath.complex(-3,4)
-	c2 = math.complex(1.264953,1.150614)
+	c2 = cmath.complex(1.264953,1.150614)
 	result = c1.root(3)
 	// Some issue with precision comparison in f64 using == operator hence serializing to string
 	assert result.str().eq(c2.str())
-	c1 = math.complex(-1,-2)
+	c1 = cmath.complex(-1,-2)
-	c2 = math.complex(1.068059,-0.595482)
+	c2 = cmath.complex(1.068059,-0.595482)
 	result = c1.root(4)
 	// Some issue with precision comparison in f64 using == operator hence serializing to string
 	assert result.str().eq(c2.str())
@@ -217,18 +218,18 @@ fn test_complex_root() {
 
 fn test_complex_exp() {
 	// Tests were also verified on Wolfram Alpha
-	mut c1 := math.complex(5,7)
+	mut c1 := cmath.complex(5,7)
-	mut c2 := math.complex(111.889015,97.505457)
+	mut c2 := cmath.complex(111.889015,97.505457)
 	mut result := c1.exp()
 	// Some issue with precision comparison in f64 using == operator hence serializing to string
 	assert result.str().eq(c2.str())
-	c1 = math.complex(-3,4)
+	c1 = cmath.complex(-3,4)
-	c2 = math.complex(-0.032543,-0.037679)
+	c2 = cmath.complex(-0.032543,-0.037679)
 	result = c1.exp()
 	// Some issue with precision comparison in f64 using == operator hence serializing to string
 	assert result.str().eq(c2.str())
-	c1 = math.complex(-1,-2)
+	c1 = cmath.complex(-1,-2)
-	c2 = math.complex(-0.153092,-0.334512)
+	c2 = cmath.complex(-0.153092,-0.334512)
 	result = c1.exp()
 	// Some issue with precision comparison in f64 using == operator hence serializing to string
 	assert result.str().eq(c2.str())
@@ -236,18 +237,18 @@ fn test_complex_exp() {
 
 fn test_complex_ln() {
 	// Tests were also verified on Wolfram Alpha
-	mut c1 := math.complex(5,7)
+	mut c1 := cmath.complex(5,7)
-	mut c2 := math.complex(2.152033,0.950547)
+	mut c2 := cmath.complex(2.152033,0.950547)
 	mut result := c1.ln()
 	// Some issue with precision comparison in f64 using == operator hence serializing to string
 	assert result.str().eq(c2.str())
-	c1 = math.complex(-3,4)
+	c1 = cmath.complex(-3,4)
-	c2 = math.complex(1.609438,2.214297)
+	c2 = cmath.complex(1.609438,2.214297)
 	result = c1.ln()
 	// Some issue with precision comparison in f64 using == operator hence serializing to string
 	assert result.str().eq(c2.str())
-	c1 = math.complex(-1,-2)
+	c1 = cmath.complex(-1,-2)
-	c2 = math.complex(0.804719,-2.034444)
+	c2 = cmath.complex(0.804719,-2.034444)
 	result = c1.ln()
 	// Some issue with precision comparison in f64 using == operator hence serializing to string
 	assert result.str().eq(c2.str())
@@ -255,18 +256,18 @@ fn test_complex_ln() {
 
 fn test_complex_sin() {
 	// Tests were also verified on Wolfram Alpha
-	mut c1 := math.complex(5,7)
+	mut c1 := cmath.complex(5,7)
-	mut c2 := math.complex(-525.794515,155.536550)
+	mut c2 := cmath.complex(-525.794515,155.536550)
 	mut result := c1.sin()
 	// Some issue with precision comparison in f64 using == operator hence serializing to string
 	assert result.str().eq(c2.str())
-	c1 = math.complex(-3,4)
+	c1 = cmath.complex(-3,4)
-	c2 = math.complex(-3.853738,-27.016813)
+	c2 = cmath.complex(-3.853738,-27.016813)
 	result = c1.sin()
 	// Some issue with precision comparison in f64 using == operator hence serializing to string
 	assert result.str().eq(c2.str())
-	c1 = math.complex(-1,-2)
+	c1 = cmath.complex(-1,-2)
-	c2 = math.complex(-3.165779,-1.959601)
+	c2 = cmath.complex(-3.165779,-1.959601)
 	result = c1.sin()
 	// Some issue with precision comparison in f64 using == operator hence serializing to string
 	assert result.str().eq(c2.str())
@@ -274,18 +275,18 @@ fn test_complex_sin() {
 
 fn test_complex_cos() {
 	// Tests were also verified on Wolfram Alpha
-	mut c1 := math.complex(5,7)
+	mut c1 := cmath.complex(5,7)
-	mut c2 := math.complex(155.536809,525.793641)
+	mut c2 := cmath.complex(155.536809,525.793641)
 	mut result := c1.cos()
 	// Some issue with precision comparison in f64 using == operator hence serializing to string
 	assert result.str().eq(c2.str())
-	c1 = math.complex(-3,4)
+	c1 = cmath.complex(-3,4)
-	c2 = math.complex(-27.034946,3.851153)
+	c2 = cmath.complex(-27.034946,3.851153)
 	result = c1.cos()
 	// Some issue with precision comparison in f64 using == operator hence serializing to string
 	assert result.str().eq(c2.str())
-	c1 = math.complex(-1,-2)
+	c1 = cmath.complex(-1,-2)
-	c2 = math.complex(2.032723,-3.051898)
+	c2 = cmath.complex(2.032723,-3.051898)
 	result = c1.cos()
 	// Some issue with precision comparison in f64 using == operator hence serializing to string
 	assert result.str().eq(c2.str())
@@ -293,18 +294,18 @@ fn test_complex_cos() {
 
 fn test_complex_tan() {
 	// Tests were also verified on Wolfram Alpha
-	mut c1 := math.complex(5,7)
+	mut c1 := cmath.complex(5,7)
-	mut c2 := math.complex(-0.000001,1.000001)
+	mut c2 := cmath.complex(-0.000001,1.000001)
 	mut result := c1.tan()
 	// Some issue with precision comparison in f64 using == operator hence serializing to string
 	assert result.str().eq(c2.str())
-	c1 = math.complex(-3,4)
+	c1 = cmath.complex(-3,4)
-	c2 = math.complex(0.000187,0.999356)
+	c2 = cmath.complex(0.000187,0.999356)
 	result = c1.tan()
 	// Some issue with precision comparison in f64 using == operator hence serializing to string
 	assert result.str().eq(c2.str())
-	c1 = math.complex(-1,-2)
+	c1 = cmath.complex(-1,-2)
-	c2 = math.complex(-0.033813,-1.014794)
+	c2 = cmath.complex(-0.033813,-1.014794)
 	result = c1.tan()
 	// Some issue with precision comparison in f64 using == operator hence serializing to string
 	assert result.str().eq(c2.str())
@@ -312,18 +313,18 @@ fn test_complex_tan() {
 
 fn test_complex_sinh() {
 	// Tests were also verified on Wolfram Alpha
-	mut c1 := math.complex(5,7)
+	mut c1 := cmath.complex(5,7)
-	mut c2 := math.complex(55.941968,48.754942)
+	mut c2 := cmath.complex(55.941968,48.754942)
 	mut result := c1.sinh()
 	// Some issue with precision comparison in f64 using == operator hence serializing to string
 	assert result.str().eq(c2.str())
-	c1 = math.complex(-3,4)
+	c1 = cmath.complex(-3,4)
-	c2 = math.complex(6.548120,-7.619232)
+	c2 = cmath.complex(6.548120,-7.619232)
 	result = c1.sinh()
 	// Some issue with precision comparison in f64 using == operator hence serializing to string
 	assert result.str().eq(c2.str())
-	c1 = math.complex(-1,-2)
+	c1 = cmath.complex(-1,-2)
-	c2 = math.complex(0.489056,-1.403119)
+	c2 = cmath.complex(0.489056,-1.403119)
 	result = c1.sinh()
 	// Some issue with precision comparison in f64 using == operator hence serializing to string
 	assert result.str().eq(c2.str())
@@ -331,18 +332,18 @@ fn test_complex_sinh() {
 
 fn test_complex_cosh() {
 	// Tests were also verified on Wolfram Alpha
-	mut c1 := math.complex(5,7)
+	mut c1 := cmath.complex(5,7)
-	mut c2 := math.complex(55.947047,48.750515)
+	mut c2 := cmath.complex(55.947047,48.750515)
 	mut result := c1.cosh()
 	// Some issue with precision comparison in f64 using == operator hence serializing to string
 	assert result.str().eq(c2.str())
-	c1 = math.complex(-3,4)
+	c1 = cmath.complex(-3,4)
-	c2 = math.complex(-6.580663,7.581553)
+	c2 = cmath.complex(-6.580663,7.581553)
 	result = c1.cosh()
 	// Some issue with precision comparison in f64 using == operator hence serializing to string
 	assert result.str().eq(c2.str())
-	c1 = math.complex(-1,-2)
+	c1 = cmath.complex(-1,-2)
-	c2 = math.complex(-0.642148,1.068607)
+	c2 = cmath.complex(-0.642148,1.068607)
 	result = c1.cosh()
 	// Some issue with precision comparison in f64 using == operator hence serializing to string
 	assert result.str().eq(c2.str())
@@ -350,19 +351,21 @@ fn test_complex_cosh() {
 
 fn test_complex_tanh() {
 	// Tests were also verified on Wolfram Alpha
-	mut c1 := math.complex(5,7)
+	mut c1 := cmath.complex(5,7)
-	mut c2 := math.complex(0.999988,0.000090)
+	mut c2 := cmath.complex(0.999988,0.000090)
 	mut result := c1.tanh()
 	// Some issue with precision comparison in f64 using == operator hence serializing to string
 	assert result.str().eq(c2.str())
-	c1 = math.complex(-3,4)
+	c1 = cmath.complex(-3,4)
-	c2 = math.complex(-1.000710,0.004908)
+	c2 = cmath.complex(-1.000710,0.004908)
 	result = c1.tanh()
 	// Some issue with precision comparison in f64 using == operator hence serializing to string
 	assert result.str().eq(c2.str())
-	c1 = math.complex(-1,-2)
+	c1 = cmath.complex(-1,-2)
-	c2 = math.complex(-1.166736,0.243458)
+	c2 = cmath.complex(-1.166736,0.243458)
 	result = c1.tanh()
 	// Some issue with precision comparison in f64 using == operator hence serializing to string
 	assert result.str().eq(c2.str())
 }
+ 
+