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.


    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 2:48:47 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
(a) Verify the values of the resistors with the following colour coding: (i) red-red-orange-silver (ii) orange-orange-black-blue-green (b) What is the value of a resistor

C Programming and Data Structures 1. Define and explain flow chart with an example. 2. Write an algorithm to print all even numbers in descending order and draw the flowcha

i didnt no how to write and how to implement and the programming can be done in C and execution should be done in UNIX

to count number of occurances

Ravi is a newbie to the programming and while learning the programming language he came to know the following rules: · Each program must start with ''''{'''' and end with ''''}

Differences between a pointer and a reference 1.  A reference must always point to some object where as this restriction is not imposed on a pointer. e.g. int *pi = 0;

In this assignment you are required to develop a program that allows the creation, viewing and storage of information about ITECH7603 Students. In order to complete the task you ha

Write a fully modular C program that reads in a string of a defined size from the keyboard and reports how many times each letter of the alphabet occurs within that string (ignorin

palindrome is a string that reads the same from both the ends. Given a string S convert it to a palindrome by doing character replacement. Your task is to convert S to palindromes

how to create a flowchart? can you help me in my assignment about flowcharting ....