How to write a program to simulate electrical circuits?

Question

Electronics

Hello!
I am a beginner developer and I want to write the simplest program for simulating electrical circuits. Similar to Micro-Cap, but much simpler in functionality. With my program I want to build circuits and simulate the electrical processes occurring in them. Preferred programming language С/С++, Java.
Thank you!

Answer 1

• Learn the SPICE language.
  
• You make a language parser into the topology and cost of paths (component values).
  
• Parse the topology into a matrix (or matrices?) based on Ohm's law and Kirchhoff's rules.
  
• Optional - simplify the matrix or topology based on the "star<>triangle" replacement.
  
• Solve the matrix(es).
  
• See the ngspice source code and bang your head on the table.
  
• Repeat until an acceptable result is achieved.
  

PS If you are a programmer, go ahead!
If an electronics engineer - choose a program to your liking and study it. PPS In the sense that you do not need to make a tool if you do not plan to manufacture them.

Answer 2

And what for if there is falstad.com?

Answer 3

Well, first write a program for some simple circuit, for example, an RC chain.
Then check out https://en.wikipedia.org/wiki/SPICE
Then do better.