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1829 in science |
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The year 1829 in science and technology involved some significant events, listed below.
Johann Peter Gustav Lejeune Dirichlet was a German mathematician who made contributions to number theory, and to the theory of Fourier series and other topics in mathematical analysis; he is credited with being one of the first mathematicians to give the modern formal definition of a function.
The year 1899 in science involved some significant events, listed below.
The year 1825 science and technology involved some significant events, listed below.
The year 1832 in science and technology involved some significant events, listed below.
The year 1837 in science and technology involved some significant events, listed below.
The year 1838 in science and technology involved some significant events, listed below.
The year 1872 in science and technology involved some significant events, listed below.
The year 1817 in science and technology involved some significant events, listed below.
The year 1768 in science and technology involved some significant events.
The year 1884 in science and technology involved some significant events, listed below.
The year 1847 in science and technology involved some significant events, listed below.
The year 1873 in science and technology involved some significant events, listed below.
The year 1889 in science and technology involved some significant events, listed below.
The year 1794 in science and technology involved some significant events.
The year 1882 in science and technology involved some significant events, listed below.
The year 1868 in science and technology involved some significant events, listed below.
The year 1844 in science and technology involved some significant events, listed below.
In mathematics, the Dirichlet function is the indicator function of the set of rational numbers , i.e. if x is a rational number and if x is not a rational number.
Giovanni Antonio Amedeo Plana was an Italian astronomer and mathematician. He is considered one of the premiere Italian scientists of his age.
Jean-Baptiste Joseph Fourier was a French mathematician and physicist born in Auxerre and best known for initiating the investigation of Fourier series, which eventually developed into Fourier analysis and harmonic analysis, and their applications to problems of heat transfer and vibrations. The Fourier transform and Fourier's law of conduction are also named in his honour. Fourier is also generally credited with the discovery of the greenhouse effect.