If sinc(x)=0.707.. what is x..

How do we calculate this

Thanks

Printable View

- Feb 17th 2008, 04:44 PMcrane_2001Sinc functions
If sinc(x)=0.707.. what is x..

How do we calculate this

Thanks - Feb 17th 2008, 05:18 PMPlato
- Feb 17th 2008, 06:16 PMTwistedOne151
Are you using the normalized or unnormalized sine cardinal function?

-Kevin C. - Feb 17th 2008, 06:18 PMcrane_2001sinc function
normalised

- Feb 17th 2008, 07:48 PMmr fantastic
You're asking how to solve $\displaystyle \frac{\sin (\pi x)}{\pi x} = 0.707 ..$. You can't get an exact value in closed form. It's an example of a transcendental equation.

If you're only interested in calculatiing a numerical approximation to the exact value, then there are many options.