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Math589A_Assignment4

  • Implementing Fixed Point iteration 2D in C.
  • Implementing Python wrapper using ctypes package.

What is given?

  • A basic implementation of Fixed Point Method in C: files fixed_point.c and fixed_point.h. It only solves a specific system.
  • A Python wrapper which calls C code to solve the system: file fp_wrapper.py. It includes the necessary declarations of types and calling sequence. It provides the function solve_system which allows passing initial conditions, tolerance and maximum number of iterations to C code.
  • A basic C driver of for the C implementation: main.c

What is required?

  • Modify C code to accept an additional parameter of type double called scale
  • Replace the hard-coded constant 0.1 in the system of being solved with scale.
  • Modify the Python wrapper, so that solve_system accepts a keyword parameter scale and passes it to C code.
  • Modify main.c so that the C code driver does not crash. I will check!
  • Provide Python driver main.py exercising the wrapper with several combinations of parameters.
  • Change documentation to reflect the above code modifications.

How will your code be run by the autograder?

  • I will run the Makefile
  • Make sure not to leave imports of unnecessary Python packages because the virtual machine supports only numpy. If you need a package, ask me to include it.
  • I will call your function solve_system and check the returned values against my code.