Numerical Thingy from book to code, Calculus, Physics and allthat - (mainly) written in C, Python and other language i locked my eyes into.

I decide to learn C by solving Calculus and Physics problem found in any book, mainly from what i got in class(es) as undergrad. Geophysics student

So please bare with the MeEsSy C code. Also a disclaimer, i will make a bunch of typo, it is just me bad at typing, i'm working on it.

source:

• 2020 - Calculus II - After Mid Term

NOTE: The source currently in private mode, i'll make the public one ASAP

How i approach this thing.

Background

1. i need to:

• Learn C
• Being able to integrate C and my mother language Python as she's being so slow for some reason.
• it is just fun to learn new language, especially when you was so traumatized by C++ back then.
• also some bash scripting to make life more easy.

2. As i implicityly said before, i'm coming from python, so the c codes written would be smelled like a snake :)

Now get to my point

here's how i write the code

1. Read some book
2. look up for the problems
3. try to solve it using pencil and papers
4. code the problem and solution in C
5. ofc compile and check the results
6. write a wrapper for python

How to, idk, use it?

all of the code that are written in C and Zig are located in source/ directory. per 28/12/2014, i've wrote these:

  Dec 27 21:55 area_within_interval.c
  Dec 27 21:54 area_within_interval.h
  Dec 28 04:05 area_within_interval.zig
  Dec 27 22:59 example_area_within_interval.c
  Dec 28 02:00 function_as_parameter.zig
  Dec 27 20:51 problem_set_4_1.c
  Dec 27 21:36 problemsetA_13_21.c

most of c codes above were my initial attempt on learning C throught calculus material i learned in Uni.

The zig code area_within_interval.zig is my first attempt to re-write the area_within_interval.c and [area_within_interval.h] in Zig.

To run it?.. (im sorry im just a rookie)

i'm on Windows, here's the prereqs.:

• im using gcc from StrawberryPerl 5.40 but i'm pretty sure y'all can use gcc from MINGW or Cygwin or clang too.

• im using Zig version 0.14.0-dev.2293+6d781e095

• im using python 3.10

  • python dependency, install it using y'all fav package manager.

    • cffi==1.17.0

The python code are wrapped by the cffi from either directly from c scripts and headers, or from the shared objects.

The C scripts

The build_source.sh will compile the C scripts to executables located in bins/ sub-dir and shared objects (later for python usage) located in shared_objects/ sub-dir

The script also empties the bins/ and shared_objects before produces new executables and shared objects.

from root directory, make the bash script build_source.sh executable.

chmod u+x build_source.sh

NOTE: for now, i just use script instead of make/cmake, but let see where it will get me to

then, just run the build_source.sh by run one of the following command on y'all shell

$ ./build_source.sh
$ .\build_source.sh
bash build_source.sh

The Zig scripts

from root directory just zig run source/zig_script.zig

The Python scripts

All of python codes are wrapped by the cffi and separated in modules based on the problem from specified materials located in materials/non_codings/ sub-dir

see main.py for example. y'all can play with it.

run the main.py as a regular python script:

python main.py # if you on Windows
python3 main.py # if you on MacOS or Linux