If a piecewise constant function is integrated, the result is okay, if 2 integrals are nested, that's okay too, but 3 times the result is 'nan' which it shouldn't be: from sympy import * a1, a2, a3 = ...

Physics and Python stuff. Most of the videos here are either adapted from class lectures or solving physics problems. I really like to use numerical calculations without all the fancy programming ...

Hi, I want to plot a pathway on the Python Dash, but I'm not proficient in HTML or js. Can you give me some suggestions?

Abstract: This paper presents a novel basis function, called spherical piecewise constant basis function (SPCBF), for precomputed radiance transfer. SPCBFs have several desirable properties: ...

Due to a planned power outage on Friday, 1/14, between 8am-1pm PST, some services may be impacted. A line drawing of the Internet Archive headquarters building façade. An illustration of a magnifying ...

1 Laboratory MAP5, University Paris Descartes and CNRS, Sorbonne Paris Cité, Paris, France. 2 LPMA (CNRS 7599), UPMC, Sorbonne University, Paris, France. In a survival analysis context, we suggest a ...

School of Mathematics and Physics, Jinggangshan University, Ji’an, China. The fundamental problem of approximation theory is to resolve a possibly complicated function, called the target function, by ...

Abstract: Piecewise-constant Poisson process rate functions are easy to estimate and provide easy random-process generation. When the true rate function is continuous, however, a piecewise-constant ...