Generating sine wave

[pretu]

HI All
How can we generate a sine wave without using the sin() function.

Thanks
pretu

[Jishnu]

you can use the sine series for calculation upto a certain accuracy and then plot the curve

HI All
How can we generate a sine wave without using the sin() function.

Thanks
pretu

[twomers]

I'm assuming you don't want to use the cosine function either :) You could create a table of results and read the values off that instead of using the sine function. Alternatively you could use exponentials and imaginary numbers ...

[vegaseat]

Take a look at the code snippet at:
http://www.daniweb.com/code/snippet66.html

[Salem]

What's with all the "how to do x without using the obvious x" questions?
http://www.daniweb.com/techtalkforums/thread80025.html

[vinai05]

Hi all
How use sine wave psoc programing in micro controller cy8c27443 code

[nbaztec]

Try the sine series.

[0x69]

HI All
How can we generate a sine wave without using the sin() function.

Thanks
pretu

You can try Taylor series also.

[jayeshkamble143]

#include<iostream.h>
#include<conio.h>
#include<math.h>
#include<graphics.h>
int main(void)
{

  int gdriver = DETECT, gmode;
  float x,w1,w,a,f,fs;
  cout<<"\n\tEnter amplitude:";
  cin>>a;
  cout<<"\n\tEnter freq.:";
  cin>>f;
  cout<<"\n\tEnter sampling points:";
  cin>>fs;
  w=2*3.14*f;

  initgraph(&gdriver, &gmode, "c:\\tc\\bgi");
  line(0, 0,0,500);
  line(0,200,800,200);
 // getch();

  for(int n=0;n<640;n++)
  {
	w1=w*n;
	x=a*sin(w1/fs);
	x=x+200;
	putpixel(n,x,25);
  }
  getch();
		closegraph();
   return 0;
}