SW006013 Microchip Technology, SW006013 Datasheet - Page 152

• 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

DS51456E-page 148
acos (Continued)
acosf
Description:
Include:
Prototype:
Argument:
Return Value:
Remarks:
Example:
}
Output:
Error: domain error
The arccosine of -2.000000 is nan
The arccosine of 0.100000 is 1.470629
Calculates the trigonometric arc cosine function of a single precision
floating-point value.
<math.h>
float acosf (float x);
x
Returns the arc cosine in radians in the range of 0 to pi (inclusive).
A domain error occurs if x is less than -1 or greater than 1.
#include <math.h>
#include <stdio.h> /* for printf, perror */
#include <errno.h> /* for errno
int main(void)
{
}
Output:
Error: domain error
The arccosine of 2.000000 is nan
The arccosine of 0.000000 is 1.570796
errno = 0;
x = 0.10;
y = acos (x);
if (errno)
printf("The arccosine of %f is %f\n\n", x, y);
float x, y;
errno = 0;
x = 2.0F;
y = acosf (x);
if (errno)
printf("The arccosine of %f is %f\n\n", x, y);
errno = 0;
x = 0.0F;
y = acosf (x);
if (errno)
printf("The arccosine of %f is %f\n", x, y);
perror("Error");
perror("Error");
perror("Error");
value between -1 and 1
/* for acosf
© 2008 Microchip Technology Inc.
*/
*/