For over two millennia, mathematicians agreed on one thing: you can’t use trigonometry to prove Pythagoras’ Theorem—because ...

Abstract: Wavefield computation constitutes the majority of the computational cost for seismic applications, including reverse-time migration and full waveform inversion (FWI). One of the popular ...

DAY, AND SO IS THE EFFORT TO TIE UP LOOSE ENDS. AND IT’S STILL GOING ON. HOUSE BILL 504 IS NOW BEFORE THE SENATE ON THIRD READING FOR FINAL PASSAGE. IF ANYBODY’S EVER POPPED OPEN THE HOUSE AND SENATE ...

Abstract: In this paper, a new two-dimensional sine-cosine coupling chaos map(2D-SCCM) is proposed. The performance of the proposed two-dimensional chaotic system is analysed by using trajectory ...

President Trump’s pivot could give him room to distance himself from a conflict that he once promised to solve in days or weeks. By David E. Sanger David E. Sanger has covered five presidents over ...

The UN assembles in New York City. Correspondent Welcome back to In the Loop, TIME’s new twice-weekly newsletter about AI. We're publishing these editions both as stories on Time.com and as emails. It ...

In this book, trigonometry is presented mainly through the solution of specific problems. The problems are meant to help the reader consolidate their knowledge of the subject. In addition, they serve ...

Shingles without a rash, called zoster sine herpete, is caused by the varicella-zoster virus. This type of shingles can cause severe pain and other symptoms, even without a rash. Antiviral medicines ...

Some standard modules for making 3d shapes with attachment support, and function forms that produce a VNF. Also included are shortcuts cylinders in each orientation and extended versions of the ...

This textbook gives an introduction to Partial Differential Equations (PDEs), for any reader wishing to learn and understand the basic concepts, theory, and solution techniques of elementary PDEs. The ...