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Learn More about
Wolfram Language
ExternalFunctions
Guides
Chemistry
External Functions
Mathematics
Symbols
AcentricFactor
DiscreteCosineTransform
DiscreteSineTransform
FastFourierTransform
InverseDiscreteCosineTransform
InverseDiscreteSineTransform
InverseFastFourierTransform
LeeKeslerOmega
LoadExternalFunction
MatrixBandwidth
StielPolarFactor
ArnoudBuzing`ExternalFunctions`
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Examples
(
1
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Basic Examples
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1
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Compute a discrete cosine transform:
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1
]
:
=
l
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t
=
{
1
,
2
,
3
}
;
d
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=
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[
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]
O
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[
1
]
=
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A
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a
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T
y
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:
R
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a
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6
4
D
i
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e
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s
i
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s
:
{
3
}
Convert the
N
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A
r
r
a
y
to a
L
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t
:
I
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[
2
]
:
=
N
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a
l
[
d
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]
O
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[
2
]
=
{
1
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2
4
4
0
2
,
-
0
.
8
3
3
3
3
3
,
0
.
0
8
9
3
1
6
4
}
Compare to
F
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:
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[
3
]
:
=
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=
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[
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]
;
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[
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,
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]
/
(
2
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)
O
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[
3
]
=
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.
8
3
3
3
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3
,
0
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0
8
9
3
1
6
4
}
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