Complex number
You write a complex number with polar coordinates as
z = r · eiφ
Explanation
In trigonometric form you write a complex number as
z = r (cos φ + i sin φ)
Substitution with Euler's formula eiφ = cos φ + i sin φ then gives
z = r · eiφ
You write a complex number with polar coordinates as
z = r · eiφ
In trigonometric form you write a complex number as
z = r (cos φ + i sin φ)
Substitution with Euler's formula eiφ = cos φ + i sin φ then gives
z = r · eiφ