Need someone who can do MultiThread in c

{\rtf1\ansi\ansicpg1252\cocoartf1561\cocoasubrtf200 {\fonttbl\f0\froman\fcharset0 Times-Roman;} {\colortbl;\red255\green255\blue255;\red0\green0\blue0;} {\*\expandedcolortbl;;\cssrgb\c0\c0\c0;} \margl1440\margr1440\vieww10800\viewh8400\viewkind0 \deftab720 \pard\pardeftab720\sl280\partightenfactor0 \f0\fs24 \cf2 \expnd0\expndtw0\kerning0 \outl0\strokewidth0 \strokec2 For this lab you will write a pthreads program that will calculate the integral of sqrt(4 - x*x) from 0 to 2 using the trapezoidal rule and the Simpson's rule. There will be no more than 50 partitions. The program should ask for the number of threads to use and then spawn the appropriate number of threads to do the trapezoidal rule, print the answer, then spawn threads to do Simpson's rule and print that answer. For simplicity's sake assume each thread does one trapezoid (partition) in the trapezoidal rule, and each thread does two partitions (i.e., one parabola) in Simpson's rule. For Simpson's that means use the same width you used for Trapezoidal, but you need to divide by 6 instead of 3.\'a0\ }