Daisuke Takahashi is a professor of computer science at the

University of Tsukuba is a List of national universities in Japan, national research university located in Tsukuba, Ibaraki Prefecture, Ibaraki, Japan. The university has 28 college clusters and schools with around 16,500 students (as of 2014). The main Tsukuba ca ...

, specializing in high-performance numerical computing.

Education and career

Takahashi received a bachelor's degree in engineering in 1993 and a master's degree in engineering in 1995, both from Toyohashi University of Technology. He completed a Ph.D. in information science from the

University of Tokyo The University of Tokyo (, abbreviated as in Japanese and UTokyo in English) is a public research university in Bunkyō, Tokyo, Japan. Founded in 1877 as the nation's first modern university by the merger of several pre-westernisation era ins ...

in 1999. After working as a researcher at the University of Tokyo and at

Saitama University Saitama University (埼玉大学, ''Saitama Daigaku'') is a Japanese national university located in a suburban area of Sakura-ku, Saitama City, capital of Saitama Prefecture in Tokyo Metropolitan Area. Founded in 1873, it became a national u ...

, he joined the University of Tsukuba in 2001.

Research

Takahashi's works include several records of the number of digits of the approximation of Pi. His work on the computation of Pi has inspired his former student

Emma Haruka Iwao Emma Haruka Iwao (born April 21, 1984) is a Japanese computer scientist and cloud Platform evangelism, developer advocate at Google. In 2019 Haruka Iwao calculated the then world record for most accurate value of pi (π); which included 31.4 tril ...

, who broke a new record on March 14, 2019. In 2011, he was part of a team from the University of Tsukuba that won the

Gordon Bell Prize The Gordon Bell Prize is an award presented by the Association for Computing Machinery each year in conjunction with the SC Conference series (formerly known as the Supercomputing Conference). The prize recognizes outstanding achievement in hig ...

of the

Association for Computing Machinery The Association for Computing Machinery (ACM) is a US-based international learned society for computing. It was founded in 1947 and is the world's largest scientific and educational computing society. The ACM is a non-profit professional membe ...

for their work simulating the

quantum state In quantum physics, a quantum state is a mathematical entity that embodies the knowledge of a quantum system. Quantum mechanics specifies the construction, evolution, and measurement of a quantum state. The result is a prediction for the system ...

s of a

nanowire file:SnSe@SWCNT.jpg, upright=1.2, Crystalline 2×2-atom tin selenide nanowire grown inside a single-wall carbon nanotube (tube diameter ≈1 nm). A nanowire is a nanostructure in the form of a wire with the diameter of the order of a nanometre ( ...

using the

K computer The K computer named for the Japanese word/numeral , meaning 10 quadrillion (1016)See Japanese numbers was a supercomputer manufactured by Fujitsu, installed at the Riken Advanced Institute for Computational Science campus in Kobe, Hyōgo P ...

. He is also known for his research on the

Fast Fourier transform A fast Fourier transform (FFT) is an algorithm that computes the discrete Fourier transform (DFT) of a sequence, or its inverse (IDFT). A Fourier transform converts a signal from its original domain (often time or space) to a representation in ...

, and is one of the developers of the HPC Challenge Benchmark.

References

External links

* Living people Year of birth missing (living people) 20th-century Japanese mathematicians 21st-century Japanese mathematicians Academic staff of the University of Tsukuba Toyohashi University of Technology alumni University of Tokyo alumni Place of birth missing (living people) {{Japan-mathematician-stub