21.1.4 Cardinal sine function
The sinc function is defined by
sinc
(
x
)=
⎧
⎪
⎪
⎨
⎪
⎪
⎩
sin(
x
)
x
,
x
≠ 0,
1,
x
=0.
The
sinc
command computes the sinc function.
sinc
takes
x
, an expression.
sinc(
x
)
returns the value of the sinc function at
x
.
Examples
sinc
(
pi
*
x
)
sin
⎛
⎝
π
x
⎞
⎠
π
x
sinc
(0)
1
