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)

 

#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 4:29:23 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
For the circuit shown in Figure, verify (a) the battery voltage V , (b) the total resistance of the circuit, and (c) the values of resistance of resistors R 1 , R 2 and

Looping Statements The statements usually used for looping are for, do-while, while. The goto statement can be used for looping, but its use is generally avoided as it leads to

i need amibroker afl to dll plugin

i want a c or c++ code for solving transportation problem using modified distribution method

Write a program that accepts two real numbers from a user and a select code. If the entered select code is 1, have the program add the two previously entered numbers and display t

You are setting up an information system for a DVD Rental Company called Box office. The new system need to hold information about customers and DVDs rentals, payments and fines. C

A: Use std::ios::binary. Some operating systems differentiate among text and binary modes. In text mode, end-of-line sequences and perhaps other things are translated; in binary

Write a program that allows user to enter number of elements in an array. The program then allows user to enter the elements. Write a function called max that returns the position

application problem of tower of hanoi

program that convert take decimal digit and convert it to binart digit