SW006013 Microchip Technology, SW006013 Datasheet - Page 189

• Manufacturer Part Number: SW006013
• Description: MPLAB C Compiler For DsPIC DSCs
• Manufacturer: Microchip Technology
• Series: DsPIC30F/33Fr
• Type: MPLAB® C Compilerr

Specifications of SW006013

• Supported Families: DsPIC30F, DsPIC33F
• Core Architecture: DsPIC
• Kit Contents: Software And Docs
• Mcu Supported Families: DsPIC30F And DsPIC33F
• Tool Function: Compiler
• Tool Type: Compiler
• Processor Series: dsPIC
• Lead Free Status / RoHS Status: na
• For Use With/related Products: dSPIC DSCs
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

© 2008 Microchip Technology Inc.
sqrtf
Description:
Include:
Prototype:
Argument:
Return Value:
Remarks:
Example:
Calculates the square root of a single precision floating-point value.
<math.h>
float sqrtf(float x);
x
Returns the non-negative square root of x.
If x is negative, a domain error occurs.
#include <math.h>
#include <stdio.h> /* for printf, perror */
#include <errno.h> /* for errno
int main(void)
{
}
Output:
The square root of 0.0F is 0.000000
The square root of 9.5F is 3.082207
Error: domain error
The square root of -25F is nan
double x;
errno = 0;
x = sqrtf (0.0F);
if (errno)
printf("The square root of 0.0F is %f\n\n", x);
errno = 0;
x = sqrtf (9.5F);
if (errno)
printf("The square root of 9.5F is %f\n\n", x);
errno = 0;
x = sqrtf (-25.0F);
if (errno)
printf("The square root of -25F is %f\n", x);
perror("Error");
perror("Error");
perror("Error");
non-negative floating-point value
/* for sqrtf
DS51456E-page 185
*/
*/