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.


    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
develop a C program for Linux called pipes.c that does the following: In the main() function, it creates a pipe using the pipe() function, then creates two child processes with

I''m having trouble with my C code to red from a Hash table. Not sure what it is I''m doing wrong and stumped. I need to get it figured out by tomorrow at 4:00 p.m. Eastern time. C

#include #include #include #include #include class Employee { private: char *Name; //Set them as pointers... int IdNumber; char *Department; char *Position; public: voi

C Program for FUNCTION OF FIND THE FACTORIAL float factorial(float); void main() {           float i=0,c=0;           clrscr();           printf("ENTER THE DIGI

I need to implement a mini version of linux''s ''tar'' function in C.

Q: In p = new Fred(), does the Fred memory "leak" if  Fred constructor throws an exception? A: No.         If an exception take place during the Fred constructor of p = new F

write a program that calculates points along a rhodonea curve.... ? int fillArray( double data[ ], int nValues, double min, double max ); o Used to fill in the theta array. Return

A cl a s s c a n b e d e f i n e d i n s i d e a b l o c k o r f u n c t i o n.   T h i s t yp e cla s s i s known