HELP
An object that creates a Spectrum from
separate components.

USE
Use Build Spectrum to build spectrum values
from an array of PComplex numbers and the
frequency interval information.

LOCATION
Data ==> Build Data ==> Spectrum

EXAMPLE
If you have an Array 1D of [5], PComplex
(0,@1), (0,@2), and so forth, and frequency
start equals 11 and stop equals 16, then
frequency sample equal 11, 12, 13, 14, 15.

OPEN VIEW PARAMETERS
* Start/Stop Freq |Center/Span Freq -
Determines whether the two type-in values
represent Start/Stop or Center/Span.  Either
Start/Stop or Center/Span values can be added
as inputs.

* Freq Sampling - Specifies whether the
frequency sampling values are sampled
linearly or logarithmically.  Default is
Linear.

NOTES
The input PComplex values' mappings are
ignored.

HP VEE does not track dB-scaled data.
When you perform operations on dB-scaled
data, you must ensure that they are done
correctly.

Refer to Using HP VEE, for more
information on the dB scaling of Spectrums.

To convert between db- and linearly-scaled
data, use the library models provided with HP
VEE in the /usr/lib/veeengine/lib/ or
/usr/lib/veetest/lib/ directory.

There are the same number of points as
sampling intervals.  Each point is at the
beginning of the sampling interval.

SEE ALSO
Build Data, Build Waveform, and UnBuild
Spectrum.

fft(x) under Formula.
