1. ## Sinc functions

If sinc(x)=0.707.. what is x..
How do we calculate this
Thanks

2. Originally Posted by crane_2001
If sinc(x)=0.707.. what is x.. How do we calculate this?
What is the function $sinc(x)$?

3. Are you using the normalized or unnormalized sine cardinal function?
-Kevin C.

4. ## sinc function

normalised

5. Originally Posted by crane_2001
If sinc(x)=0.707.. what is x..
How do we calculate this
Thanks
Originally Posted by crane_2001
normalised
You're asking how to solve $\frac{\sin (\pi x)}{\pi x} = 0.707 ..$. 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.