This is a C program that uses the tinyexpr library to parse through mathmatical functions, and then uses the Simpsons Trapezodial Rule to approximate the area under the curve.

• This program asks for user input on the number of intervals, the upper and lower bounds, and the function, and which approximation method to use.
• Depending on what the user chooses, program will approximate with either simpsons or trapezoidal rule, and parse through the function using tinyexpr library
• The program supports
  • e.g. x + x^2
  • (x*5)^2
  • (x * 5) / 2
  • Factorials fac 5 == 120
  • the following constants pi, e

• Linux based system: containing gcc compiler
• Standard gcc Libaries Needed: stdio.h, string.h, ctype.h, math.h, and stdlib.h
• custom library: tinyexpr.h

• First you need to clone this repo
• then run this command

gh repo clone Betim-Hodza/Simpsons-Trapezoidal-Rules
cd SimpsonsAndTrapezoidal
gcc main.c tinyexpr-master/tinyexpr.c -lm
./a.out

Betim Hodza

Tinyexpr:

• https://github.com/codeplea/tinyexpr
• https://codeplea.com/tinyexpr