The maximum zero mass is the maximum

a) Write function to evaluate the mathematical function: f(x) = sin(2*x)*exp(-x) in a given point.

b) Write a C program to evaluate the previous function in a given set of data by specifying 3 data: a min-value, a max-value and the step h. The output should be presented like the following example:

f(x) is evaluated from -2 to 2 with a step of 0.2

nº x f(x)

1 -2 *

2 -1.8 *

3 -1.6 *

#include<stdio.H>

#include<math.H>

float f_x(float);

float f_x(float x)

{float y;

y=sin(2*x)*exp(-x);

return(y);}

int main()

{float x,h,l1,l2;

printf("introduce lower limit \n");

scanf("%f",&l1);

printf("introduce upper limit \n");

scanf("%f",&l2);

printf("introduce the step \n");

scanf("%f",&h);

printf("x f(x) \n");

for(x=l1;x<=l2;x=x+h)

printf("%g %g \n", x,f_x(x));}

Maximum, Minimum and Average of two numbers

#include<stdio.H>

float max(float, float);

float min(float, float);

float ave(float, float);

float max(float x, float y)

{if (x>y)

return(x);

else

return(y);}

float min(float x, float y)

{if (x<y)

return(x);

else

return(y);}

float ave(float x, float y)

{return((x+y)/2);}

int main(){float x=3.0,y=4.0;

printf("the maximun value is %f \n", max(x,y));

printf("the minimum value is %f \n", min(x,y));

printf("the average value is %f \n", ave(x,y));}