what is the differences between sinc & sin

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shermaine

New Member
Hi,

May i know the differences between sinc & sin?
Can we manually plot a graph of x(t) = 5sinc(t)?
Please advise.
Thank.
 
sinc = 1 , x=0
= sin(pi*x)/(pi*x) , otherwise

There's another definition without the pi's. Google "sinc function" to get some better explanations and graphs. It's just a sine function that dies out over time, in positive and negative x-direction, and its symmetric about y-axis.
 
sinc is just

sin(x)/(x)

there is nothing special abt dropping pi - look

let x = y*pi

Sin(y*pi)/(y*pi)

it is a very nice function and when you get a 3D plot that is animated very nice
 
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