# GSINC

## Purpose:

Generates a SINC function (sin(x)/x) in
accordance with the specified parameters.

## Syntax:

GSINC(length, spacing,
factor, offset)

length |
- |
An integer, the length of the output series. |

spacing |
- |
A real, the spacing (delta x) between each
point on the x-axis. |

factor |
- |
Optional. A real, the
expansion factor along the x-axis. Defaults to 1. |

offset |
- |
Optional. A real, the
offset along x-axis, specified in radians in SETRADIAN mode,
or degrees in SETDEGREE mode. Defaults to 0. |

## Returns:

A series.

## Example:

gsinc(200,0.1,5.0,-50.0)

creates a SINC function of 200 points
spaced 0.1 x-units apart. The series is also be shifted by 50 x-units
(the offset value) on the x-axis, and compressed by a factor of 5. Try
generating this series: it is our favorite.

## Remarks:

gsinc(n, dx, f, p)

is equivalent to

gsin(n, dx, f/(2*pi), 0x)/gline(n, dx,
f, p)

in SETRADIAN mode and to

gsin(n, dx, f/(2*pi), 0x)/gline(n, dx,
f, p*pi/180)

in SETDEGREE mode.

## See Also:

SINC

TRIGNOMETRIC
FUNCTION GENERATORS