Area Under Curve, C/C++ Programming

Write a program to find the area under the curve y = f(x) between x = a and x = b, integrate y = f(x) between the limits of a and b. The area under a curve between two points can be found by doing a definite integral between the two points.

 

#include 
float
    start_point,            /* GLOBAL VARIABLES */

end_point, total_area; int numtraps; main( ) { void input(void ); float find_area(float a,float b,int n); /* prototype */
print(“AREA UNDER A CURVE”); input( ); total_area = find_area(start_point, end_point, numtraps); printf(“TOTAL AREA = %f”, total_area); } void input(void ) { printf(“\n Enter lower limit:”); scanf(“%f”, &start_point); printf(“Enter upper limit:”); scanf(“%f”, &end_point); printf(“Enter number of trapezoids:”); scanf(“%d”, &numtraps); } float find_area(float a, float b, int n) { float base , lower, h1, h2; /* LOCAL VARIABLES */
float function_x(float x); /* prototype */
float trap_area(float h1,float h2,float base );/*prototype*/
base = (b-1)/n; lower = a; for (lower =a; lower <= b-base ; lower = lower + base ) { h1 = function_x(lower); h1 = function_x(lower + base ); total_area += trap_area(h1, h2, base ); } return (total_area); float trap_area(float height_1,float height_2,float base ) { float area; /* LOCAL VARIABLE */
area = 0.5 * (height_1 + height_2) * base ; return (area); } float function_x(float x) { /* F(X) = X * X + 1 */
return (x*x + 1); } Output AREA UNDER A CURVE Enter lower limit: 0 Enter upper limit: 3 Enter number of trapezoids: 30 TOTAL AREA = 12.005000 AREA UNDER A CURVE Enter lower limit: 0 Enter upper limit: 3 Enter number of trapezoids: 100 TOTAL AREA = 12.000438

Posted Date: 9/1/2012 3:41:37 AM | Location : United States







Related Discussions:- Area Under Curve, Assignment Help, Ask Question on Area Under Curve, Get Answer, Expert's Help, Area Under Curve Discussions

Write discussion on Area Under Curve
Your posts are moderated
Related Questions
Write a C++ program which does the following: 1. Asks the user to enter the following text "Four score and seven years ago there was a man named Joey Bagadonuts." 2. Save thi

Write a program IdentyfyWordsMain.java reading a fi le (like HistoryOfProgramming) and divide the text into a sequence of words (word=sequence of letters). Save the result in a new

convert lower case to uper case

i am a engineering student and am working on a project in audio processing and so i have designed a FIR filter in Matlab . how can i get my Matlab program converted to C program?

1. write a program named InputMethodDemo2 that eliminates the repetitive code in the InputMethod() in the InputMethodDemo program. Rewrite the program so the InputMethod()contains

Increment and Decrement Operators.   The operator for increment is '++' and decrement is '-'. These operators enhances or decrease the value of a variable on which they are ope

draw the flow chart to print the fibonacci series upto n th terms

WAP TO PRINT SERIES FROM 1 TO 10 & FIND ITS SQUARE AND CUBE # include stdio.h> # include conio.h> # include math.h>   void main () { int a=1,sqr=0,cube=0;

how to create database of faculty database......... send me with program

Convert a COV/CPE (Micosoft Fax Cover Page) file to a TIF image file Project Description: I would like a small API written that will take a COV/CPE file and replaced the corr