The **`cmath.rect()` method** is used to convert polar coordinates to rectangular coordinates.
> The `cmath` library in Python is used for complex number mathematics.


# 
## Syntax

---
```python
math.rect(r, phi)
```
---

## Parameters
* **`r`**: The modulus of a complex number in the complex plane.
* **`phi(ϕ)`**: The phase of a complex number.


## Return value
**`Complex number`**: it will return a complex value, which will represent a rectangular form.

## Code
It will return a complex number in pair form (X+Yj).
* **Example 1**: When both are `non zero`, it will return a complex number.
* **Example 2**: When the phase is zero `phi=0`.
* **Example 3**: When the modulus is zero `r=0`.

# include the Library
import cmath
# r=4, phi=20
# Printing the result on console
print(cmath.rect(4,20))

Example#1

# include the Library
import cmath
# r=0, phi=10
# Printing the result on console
print (cmath.rect(0,10))


Example#2

# include the Library
import cmath
# r=10, phi=0
# Printing the result on console
print (cmath.rect(10,0))


Example#3

What is cmath.rect(r, phi) in Python?

The cmath.rect() function converts polar coordinates to rectangular (complex) coordinates in Python.