home
***
CD-ROM
|
disk
|
FTP
|
other
***
search
/
PC World Interactive 7
/
PC World Interactive 7.iso
/
program
/
ctutor.exe
/
SOURCE
/
FLOATSQ2.C
< prev
next >
Wrap
C/C++ Source or Header
|
1994-05-15
|
1KB
|
62 lines
/* Chapter 5 - Program 7 - FLOATSQ2.C */
#include "stdio.h" /* Prototypes for standard Input/Outputs */
float sqr(float inval);
float glsqr(void);
float z; /* This is a global variable */
void main()
{
int index;
float x, y;
for (index = 0 ; index <= 7 ; index++){
x = index; /* convert int to float */
y = sqr(x); /* square x to a floating point variable */
printf("The square of %d is %10.4f\n", index, y);
}
for (index = 0 ; index <= 7 ; index++) {
z = index;
y = glsqr();
printf("The square of %d is %10.4f\n", index, y);
}
}
float sqr(float inval) /* square a float, return a float */
{
float square;
square = inval * inval;
return(square);
}
float glsqr(void) /* square a float, return a float */
{
return(z * z);
}
/* Result of execution
The square of 0 is 0.0000
The square of 1 is 1.0000
The square of 2 is 4.0000
The square of 3 is 9.0000
The square of 4 is 16.0000
The square of 5 is 25.0000
The square of 6 is 36.0000
The square of 7 is 49.0000
The square of 0 is 0.0000
The square of 1 is 1.0000
The square of 2 is 4.0000
The square of 3 is 9.0000
The square of 4 is 16.0000
The square of 5 is 25.0000
The square of 6 is 36.0000
The square of 7 is 49.0000
*/