Trigonometric function

Library

Non_linear

Description

The Trigonometric Function block performs numerous common trigonometric functions. You can select one of these functions from the Function list: sin, cos, tan, asin, acos, atan, atan2, sinh, cosh, and tanh. The block output is the result of the operation of the function on the input or inputs.

Dialog Box

Choose among sin, cos, tan, asin
Function	sin

• Function: The trigonometric function.

Default properties

• always active: no
• direct-feedthrough: yes
• zero-crossing: no
• mode: no
• number/sizes of inputs: 1 / -1
• number/sizes of outputs: 1 / -1
• number/sizes of activation inputs: 0 /
• number/sizes of activation outputs: 0 /
• continuous-time state: no
• discrete-time state: no
• name of computational function: sin_blk

Interfacing function

scilab/macros/scicos_blocks/nonlinear/TrigFun.sci

Computational function (type 4)

#include "scicos_block.h"
#include <math.h>

void sin_blk(scicos_block *block,int flag)
{
  int j;
  if(flag==1){
    for (j=0;j<block->insz[0];j++) {
      block->outptr[0][j]=sin(block->inptr[0][j]);
    }
  }
}