Gordon Charles Danielson (October 28, 1912 - September 30, 1983) was a Distinguished Professor in

Sciences and Humanities Science is a systematic discipline that builds and organises knowledge in the form of testable hypotheses and predictions about the universe. Modern science is typically divided into twoor threemajor branches: the natural sciences, which stu ...

in 1964 at

Iowa State University Iowa State University of Science and Technology (Iowa State University, Iowa State, or ISU) is a Public university, public land-grant university, land-grant research university in Ames, Iowa, United States. Founded in 1858 as the Iowa Agricult ...

Ames AMES, short Air Ministry Experimental Station, was the name given to the British Air Ministry's radar development team at Bawdsey Manor (afterwards RAF Bawdsey) in the immediate pre-World War II era. The team was forced to move on three occasion ...

Iowa Iowa ( ) is a U.S. state, state in the upper Midwestern United States, Midwestern region of the United States. It borders the Mississippi River to the east and the Missouri River and Big Sioux River to the west; Wisconsin to the northeast, Ill ...

. His name was added to the Distinguished Professor Award Wall in Beardsher Hall. A scholarship fund, the Gordon C. Danielson Fund was established in his name. Danielson collaborated with

Cornelius Lanczos __NOTOC__ Cornelius (Cornel) Lanczos (, ; born as Kornél Lőwy, until 1906: ''Löwy (Lőwy) Kornél''; February 2, 1893 – June 25, 1974) was a Hungarian-Jewish, Hungarian-American and later Hungarian-Irish mathematician and physicist. Accordi ...

to write the paper, ''Some Improvements in Practical Fourier Analysis and their Application to X-ray Scattering from Liquids'' (1942). The Danielson-Lanczos lemma, which appears in this paper, is the basis of the

Cooley–Tukey FFT algorithm The Cooley–Tukey algorithm, named after James Cooley, J. W. Cooley and John Tukey, is the most common fast Fourier transform (FFT) algorithm. It re-expresses the discrete Fourier transform (DFT) of an arbitrary composite number, composite size ...

, an efficient algorithm for computing the

discrete Fourier transform In mathematics, the discrete Fourier transform (DFT) converts a finite sequence of equally-spaced Sampling (signal processing), samples of a function (mathematics), function into a same-length sequence of equally-spaced samples of the discre ...

.Danielson, G. C., and C. Lanczos, "Some improvements in practical Fourier analysis and their application to X-ray scattering from liquids," ''J. Franklin Inst.'' 233, 365–380 and 435–452 (1942). With L. D. Muhlstein he wrote ''Effects of Ordering on the Transport Properties of Sodium Tungsten Bronze'' (1967).

References

Effects of Ordering on the Transport Properties of Sodium Tungsten Bronze
American physicists Iowa State University faculty 1983 deaths 1912 births {{US-physicist-stub