Python is a popular and powerful programming language used in a variety of fields, from web development to data science and machine learning. One of the essential functions in Python is the `complex()`

method, which allows for the creation and manipulation of complex numbers.

In this article, we will explore the syntax of the `complex()`

method and various ways to use it.

## Constructing Complex Numbers using Python complex() Method

The syntax of the Python `complex()`

method is straightforward. It takes two parameters: `x`

and `y`

, where `x`

is the real part of the complex number and `y`

is the imaginary part.

The `complex()`

method returns a complex number in the form of `x + yj`

, where `j`

is the square root of -1. To construct a complex number using numeric parameters, call the `complex()`

method and provide the values for `x`

and `y`

.

For instance, the following statement generates a complex number with a real part of 2 and an imaginary part of 4:

`z = complex(2, 4)`

If you want to create a complex number using hexadecimal or binary arguments, specify the radix base before the numeric value. For example, the following statement generates a complex number from the hexadecimal value of 0x2 + 0x13i:

`z = complex(0x2, 0x13)`

Similarly, the following statement creates a complex number from the binary value of 0b101 + 0b101i:

`z = complex(0b101, 0b101)`

You can use another complex number to create a new one by passing the existing complex number as an argument to the `complex()`

method.

The following statement creates a new complex number from an existing one:

`z = complex(z1)`

Finally, you can construct a complex number using string arguments. In this case, the method will try to parse the string and extract the real and imaginary parts.

The string should have the form of “real+imagj”. For example, the following statement creates a complex number from the string “2+4j”:

`z=complex("2+4j")`

Note that if the string cannot be parsed correctly, the method will raise a `ValueError`

exception.

## Examples of using Python complex() Method

Now that we know how to construct complex numbers using the Python `complex()`

method let’s take a look at some examples of how to use it.

### 1. Calling complex() without any parameter

When called without any parameters, the `complex()`

method generates a zero complex number. For instance, the following statement creates a complex number with both the real and imaginary parts set to 0:

`z=complex()`

### 2. Constructing a Complex Number using Numeric Parameters

Suppose we want to create a complex number with a real part of -5 and an imaginary part of 2. We can do that by calling the `complex()`

method and passing the values to `x`

and `y`

, respectively, as follows:

`z = complex(-5, 2)`

The resulting complex number `z`

will be -5 + 2j.

### 3. Constructing a Complex Number using Hexadecimal/Binary Arguments

Suppose we want to create a complex number from the hexadecimal value of 0xe + 0x1i.

We can do that using the `complex()`

method and the hexadecimal arguments, as shown below:

`z = complex(0xe, 0x1)`

The resulting complex number `z`

will be 14 + 1j. If we want to create a complex number using binary arguments, we can do so by specifying the binary values preceded by ‘0b’ in the parameters, as follows:

`z = complex(0b1101, 0b1101)`

The resulting complex number `z`

will be 13 + 13j.

### 4. Constructing a Complex Number using Another Complex Number

Suppose we have an existing complex number `z1`

and want to create a new one from it.

We can do so by passing `z1`

as a parameter to the `complex()`

method, as follows:

`z = complex(z1)`

The resulting complex number `z`

will have the same real and imaginary parts as `z1`

.

### 5. Constructing a Complex Number using String Arguments

Finally, we can also construct a complex number using string arguments. For example, the following statement creates a complex number from the string “5+8j”:

`z = complex("5+8j")`

The resulting complex number `z`

will be 5+8j.

## Conclusion

In conclusion, the Python `complex()`

method is a powerful tool for creating and manipulating complex numbers in Python. We can use numeric parameters, hexadecimal/binary arguments, existing complex numbers, or string arguments to construct new complex numbers.

By understanding the syntax and various options available, we can use the `complex()`

method to perform complex number operations seamlessly. Python is a versatile programming language with a wide range of functionalities, among which is the ability to create and manipulate complex numbers.

The use of complex numbers is prevalent in various fields such as physics, engineering, and telecommunications. The Python `complex()`

method is an essential tool for managing and performing operations on complex numbers.

In this article, we have explored how to construct complex numbers using the Python `complex()`

method. The syntax for constructing a complex number using the `complex()`

method involves providing two parameters: `x`

for the real part of the complex number, and `y`

for the imaginary part.

The `complex()`

method returns a complex number in the form of `x + yj`

.

We have also demonstrated how to create complex numbers using different parameters such as numeric parameters, hexadecimal/binary arguments, existing complex numbers, and string arguments.

Additionally, we have provided examples of each parameter, showing how to create complex numbers of different values and configurations.

### 1. Constructing Complex Numbers using Numeric Parameters

To construct a complex number using numeric parameters, we can pass the values for `x`

and `y`

as arguments to the `complex()`

method. For example, if we want to create a complex number with a real part of 4 and an imaginary part of -3, we can do that using the following statement:

`z = complex(4, -3)`

The resulting complex number `z`

will be 4 – 3j.

### 2. Constructing Complex Numbers using Hexadecimal/Binary Arguments

To construct a complex number using hexadecimal or binary arguments, we can add the radix base before the numeric value.

For instance, if we want to create a complex number from the hexadecimal value of 0x5 + 0x9i, we can use the following statement:

`z = complex(0x5, 0x9)`

The resulting complex number `z`

will be 5 + 9j. Similarly, if we want to create a complex number using binary arguments, we can do so by specifying the binary values preceded by ‘0b’ in the parameters, as shown below:

`z = complex(0b101, 0b011)`

The resulting complex number `z`

will be 5 + 3j.

### 3. Constructing Complex Numbers using Another Complex Number

We can create a new complex number from an existing one in Python by passing the existing complex number as an argument to the `complex()`

method.

For example, if we have an existing complex number `z1`

, we can create a new one using the following statement:

`z = complex(z1)`

The resulting complex number `z`

will have the same real and imaginary parts as `z1`

.

### 4. Constructing Complex Numbers using String Arguments

Finally, we can create complex numbers in Python using string arguments. In this case, the `complex()`

method will parse the string and extract the real and imaginary parts.

The string should be in the form of “real+imagj”, where the real and imaginary parts are separated by the ‘+’ sign. If the string cannot be parsed correctly, the method will raise a `ValueError`

exception.

For instance, using the following statement:

`z = complex("6-5j")`

The resulting complex number `z`

will be 6 – 5j.

## Conclusion

In conclusion, constructing complex numbers in Python using the Python `complex()`

method is a simple process that offers flexibility and versatility to programmers. We can construct complex numbers using numeric parameters, hexadecimal/binary arguments, existing complex numbers, and string arguments.

Understanding the syntax and different options available for creating complex numbers in Python helps programmers to develop robust and efficient code for complex number operations in different fields. With the Python `complex()`

method, complex number operations become more manageable and straightforward.

Hence, Python is a preferred language for complex mathematics operations due to its vast capabilities and simplicity. In summary, the Python `complex()`

method is an essential tool for creating, manipulating, and performing operations on complex numbers in Python.

To construct a complex number using the `complex()`

method, two parameters, `x`

and `y`

, representing the real and imaginary parts of the complex number, are required. We can create complex numbers using numeric parameters, hexadecimal/binary arguments, existing complex numbers, and string arguments.

Understanding the different methods available for generating complex numbers in Python is crucial in developing efficient and robust code for complex number operations in various fields. Therefore, the use of complex numbers and the Python `complex()`

method is vital in mathematics and programming and is worth exploring in-depth for those looking to master complex numbers.