Mathematica needs you! Add, subtract, divide and multiply your way to victory. Meet the Karate Cats and practice spelling, grammar and punctuation as you chop, kick and smash the challenges. Join ...

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Abstract: Silicon-based millimeter-wave (mm-wave) phased-array technologies are enabling directional wireless data communications at Gb/s speeds. In this paper, we review and discuss the challenges of ...

Learn about coordinating conjunctions as Julius Caesar prepares his legion to invade the British Isles. Then, put your knowledge to the test in the quiz! You use coordinating conjunctions to connect ...