In an extraordinary achievement that has stunned the global mathematics community, two high school students from Louisiana have developed a novel way to prove the Pythagorean theorem—and their ...

Trigonometric functions like sine and cosine can be tricky when calculating limits. Here's THE method to avoid making ...

School of Information Science and Engineering, Changzhou University, Changzhou 213164, P. R. China College of Automation Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 211106 ...