func (f rat) Evaluate(z complex128) complex128 {
num := f.numerator.Evaluate(z)
denom := f.denominator.Evaluate(z)
if denom == 0 {
return cmplx.Inf()
}
return num / denom
}
func BenchmarkComplex128DivDisInf(b *testing.B) {
d := cmplx.Inf()
n := 32 + 3i
for i := 0; i < b.N; i++ {
n += n / d
}
result = n
}
func BenchmarkComplex128DivNisInf(b *testing.B) {
d := 15 + 2i
n := cmplx.Inf()
for i := 0; i < b.N; i++ {
n += n / d
}
result = n
}
func BenchmarkComplex128DivNisInf(b *testing.B) {
d := 15 + 2i
n := cmplx.Inf()
res := 0i
for i := 0; i < b.N; i++ {
d += 0.1i
res += n / d
}
result = res
}
func main() {
f := 3.2e5
display(f)
x := -7.3 - 8.9i
display(x)
y := complex64(-18.3 + 8.9i)
display(y)
z := complex(f, 13.2)
display(z)
display(real(y))
display(imag(z))
display(cmplx.Conj(z))
display(cmplx.Inf())
display(cmplx.NaN())
display(cmplx.Sqrt(z))
}
func solve(equation Quadratic) Solutions {
var solutions Solutions
if EqualFloat(equation.a, 0) && EqualFloat(equation.b, 0) {
solutions = append(solutions, Solution(cmplx.Inf()))
return solutions
}
if EqualFloat(equation.a, 0) {
solutions = append(solutions, Solution(complex(equation.c/equation.b, 0)))
return solutions
}
a := complex(equation.a, 0)
b := complex(equation.b, 0)
c := complex(equation.c, 0)
delta := cmplx.Sqrt(b*b - 4*a*c)
x1 := (-b - delta) / 2 / a
x2 := (-b + delta) / 2 / a
solutions = append(solutions, Solution(x1))
if !EqualComplex(x1, x2) {
solutions = append(solutions, Solution(x2))
}
return solutions
}
