Trigonometry Library

The mikroC PRO for PIC32 implements fundamental trigonometry functions. These functions are implemented as look-up tables. Trigonometry functions are implemented in integer format in order to save memory.

Library Routines

sinE3

Prototype

int sinE3(unsigned angle_deg);

Description

The function calculates sine multiplied by 1000 and rounded to the nearest integer:

result = round(sin(angle_deg)*1000)
Parameters
  • angle_deg: input angle in degrees
Returns

The function returns the sine of input parameter multiplied by 1000.

Requires

Nothing.

Example
int res;
...
res = sinE3(45);  // result is 707
Notes

Return value range: -1000..1000.

cosE3

Prototype

int cosE3(unsigned angle_deg);

Description

The function calculates cosine multiplied by 1000 and rounded to the nearest integer:

result = round(cos(angle_deg)*1000)
Parameters
  • angle_deg: input angle in degrees
Returns

The function returns the cosine of input parameter multiplied by 1000.

Requires

Nothing.

Example
int res;
...
res = cosE3(196);  // result is -193
Notes

Return value range: -1000..1000.

Copyright (c) 2002-2012 mikroElektronika. All rights reserved.
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