Derivatives are fundamental tools in calculus, representing the instantaneous rate of change of a function. Understanding which derivative is described by a given expression requires a firm grasp of ...

This is a python version of the logarithmic FFT code FFTLog as presented in Appendix B of Hamilton (2000) and published at jila.colorado.edu/~ajsh/FFTLog. A simple ...

Plug-in hybrid electric vehicles (PHEVs) have the most problems of any category of new vehicles, reports J.D. Power in the 2025 U.S. Initial Quality Study. That includes more problems than their ...

Starlink is a significant game changer for those who live in areas with limited or no high-speed internet options and is easily the best Satellite Internet provider. Of course, it’s a relatively new ...

Abstract: The electromagnetic oscillatory instability resulting from converter control interactions represents a crucial issue in large-scale renewable powered systems. Quantitatively assessing the ...

We collaborate with the world's leading lawyers to deliver news tailored for you. Sign Up for any (or all) of our 25+ Newsletters. Some states have laws and ethical rules regarding solicitation and ...

Current AI models struggle to solve research-level math problems, with the most advanced AI systems we have today solving just 2% of the hundreds of challenges faced. When you purchase through links ...

Dtest_D3({{0.00000,0.10000e+01 },{-0.73809e-04 ,0.10000e+01 }, re_abs_tol = ( std::get<3>(data) > min_abs_tol && std::real(func_mp) < min_abs_tol) ? std::get<3>(data ...

ABSTRACT: This paper considers the regularity of solutions to mixed boundary value problems in small-angle regions for elliptic equations. By constructing a specific barrier function, we proved that ...