Junjie Hu WKH 20200924. It turns out you can literally fit an elephant with four parameters if you allow the parameters to be complex numbers.
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3202020 With four parameters I can fit an elephant and with five I can make him wiggle his trunk.
Drawing an elephant with four complex parameters. 612010 Drawing an elephant with four complex parameters. – Complex analysis – Fourier Transform – Elephant Trunk Wiggling Author. Drawing an elephant with four complex parameters Jrgen Mayer.
American Journal of Physics 786. Jgen Mayer Khaled Khairy and Jonathon Howard Drawing an elephant with four complex parameters American Journal of Physics volume 78 pages 648-9 2010. 78 648 2010 DOI10111913254017.
The real and imaginary parts of these complex numbers are the coefficients of a Fourier coordinate expansion a powerful tool for. The answer is yes according to a recent paper by Howard and colleagues Mayer et al Drawing an elephant with four complex parameters Am. American Journal of Physics78 648-649 2010 With four parameters I can fit an elephant and with five I can make him wiggle his trunk–John von Neuman according to Fermi 4 parameters 5 parameters F.
Dyson A meeting with Enrico Fermi. American Journal of Physics 78 648 2010. Trying to fit the world Drawing an elephant with four complex parameters by Jurgen Mayer Khaled Khairy and Jonathon Howard Am.
Drawing an elephant with four complex parameters by Jurgen Mayer Khaled Khairy and Jonathon Howard Am. Piotr also sent me the following Python code hed written to implement the method in the paper. Phys 78 648 2010.
Drawing an elephant with four complex parameters Jurgen Mayer Khaled Khairy and Jonathon Howard Am. The real and imaginary parts of these complex numbers are the coefficients of a Fourier coordinate expansion a powerful tool for reducing the data required to define shapes. With four parameters I can fit an elephant and with five I can make him wiggle his trunk John von Neumann.
Doi10111913254017 Papacharalampous GA Tyralis H Koutsoyiannis D 2017 Comparison of stochastic and machine learning methods for multi-step ahead forecasting of hydrological processes. See figureThe goal is to reconstitute this drawing with an analytical function representing the elephant that has a minimal number of parameters. Zolnierczuk zolnierczukp at ornl dot gov Based on a paper by.
With four parameters I can fit an elephant and with five I can make him wiggle his trunk. Import numpy as np import pylab elephant parameters. Elephant_wiggle_trunk Published in.
Use complex numbers as parameters to fit an elephant that wiggle its trunk. We define four complex numbers representing the parameters needed to specify an elephantine shape. Sorry we are unable to provide the full text but you may find it at the following locations.
612010 Drawing an elephant with four complex parameters Mayer Jrgen. 78 648 2010 DOI10111913254017. The file elephantjpg contains a picture of a hand-drawn elephant.
1022011 Name of Quantlet. Howard Jonathon 2010-06-01 000000 We define four complex numbers representing the parameters needed to specify an elephantine shape. A turning point in Freeman Dysons life occurred during a meeting in the Spring of 1953 when Enrico Fermi criticized the complexity of Dysons model by quoting Johnny von Neumann.
108 01307 Dresden Germany. The file elephantjpg contains a picture of a hand-drawn elephant. My understanding is that he meant calculating five different values would allow you to create a graph of something approximately elephantine in shape.
Taking these parameters and writing a Python script to implement them we end up with. In his luggage the young professor had the results of his groups long effort to calculate mesonproton scattering. With enough parameters you can fit any data set.
8302017 Can we really draw an elephant with four parameters. The answer is yes according to a recent paper by Howard and colleagues Mayer et al Drawing an elephant with four complex parameters Am. 5122010 Drawing an elephant with four complex parameters.
78 648 2010 12. We will attempt to repeat their study in this exercise. Can we really draw an elephant with four parameters.
Phys 78 648 2010. Creates an MP4 file of the wiggling elephant Keywords. References Mayer J Khairy K Howard J 2010 Drawing an elephant with four complex parameters.
6212011 Drawing an elephant with four complex parameters by Jurgen Mayer Khaled Khairy and Jonathon Howard Am. In the spring of 1953 Freeman Dyson travelled to Chicago to meet Enrico Fermi. 752010 Drawing an elephant with four complex parameters.
The real and imaginary parts of these complex numbers are the coefficients of a Fourier coordinate expansion a powerful tool for reducing the data required to define shapes. We define four complex numbers representing the parameters needed to specify an elephantine shape. Doi10111913254017 2 Freeman Dyson A meeting with Enrico Fermi Nature London 427 6972 297 2004.
We will attempt to repeat their study in this exercise. 78 648 2010 DOI10111913254017. Max Planck Institute of Molecular Cell Biology and Genetics Pfotenhauerstr.
By this he meant that one should not be impressed when a complex model fits a data set well.
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