Research any topic before you write.
Find related topics. | Discover entities. | See connections. | Build a topical map.
FFTPACK is a package of Fortran subroutines for the fast Fourier transform. It includes complex, real, sine, cosine, and quarter-wave transforms. It was developed by Paul Swarztrauber of the National Center for Atmospheric Research, and is included in the general-purpose mathematical library SLATEC.
Art & Overview
Explore the main themes, entities and connections around FFTPACK. Start with the topic map, then use the sections below for research and deeper semantic analysis.
Start with a few of the strongest sections from the source topic. These are research directions, not a list of keywords you must use.
High-confidence facts extracted from structured source data. Use them as anchors for further research.
Browse the full topic structure. Each item opens a new analysis centered on that subject.
Deeper signals for content research, entity SEO and topical coverage. The plain-language headings explain what each technical view is useful for.
See the strongest relationship patterns around the current topic before diving into the raw triples.
Use these terms to understand the vocabulary surrounding the topic, not as a checklist for keyword stuffing.
swarztrauber fortran package also paul java fourier transform center mathematical library website org subroutines complex real sine cosine slatec fast
| Subject | Predicate | Object | Confidence | Src |
|---|---|---|---|---|
| FFTPACK | Developer | Paul N. Swarztrauber | 1.00 | infobox |
| FFTPACK | License | public domain | 1.00 | infobox |
| FFTPACK | Release | April 1985 | 1.00 | infobox |
| FFTPACK | Type | Numerical software | 1.00 | infobox |
| FFTPACK | Website | www.netlib.org/fftpack/ | 1.00 | infobox |
| FFTPACK | Written in | Fortran | 1.00 | infobox |
| FFTPACK | is a | package of Fortran subroutines for the fast Fourier transform | 0.90 | text |
These clusters group vocabulary that occurs around closely connected concepts in the source material.
Bridges can reveal useful research angles that are easy to miss in a flat list of related terms.