This is a Python program for performing nodal analysis on an electrical circuit. Nodal analysis is a method for determining the voltage at each node in an electrical circuit.

1. Run the Program: Run the nodal_analysis function in a Python environment. Upon execution, the program will prompt you to input the number of nodes, current sources at each node, and the admittances between nodes.

2. Input Requirements:

   • Number of nodes: Enter the total number of nodes in the circuit.
   • Current sources: For each node, enter the complex value of the current source.
   • Self-admittances: For each node, enter the complex value of the self-admittance.
   • Admittances between nodes: For each pair of nodes, enter the complex value of the admittance between them.

3. Output: The program will calculate and display the voltage at each node in the circuit.

Enter the number of nodes: 3
Enter current source at node 1: 5
Enter current source at node 2: 3
Enter current source at node 3: 1
Enter admittance at node 1: 0.5
Enter admittance at node 2: 0.6
Enter admittance at node 3: 0.4
Enter the admittance between nodes 1 and 2: 0.2
Enter the admittance between nodes 1 and 3: 0.3
Enter the admittance between nodes 2 and 3: 0.1

Voltage of node 1: 2.917241379310345
Voltage of node 2: 2.2405172413793105
Voltage of node 3: 1.7862068965517242