4/1/20 - "Good Morning Everyone, It's Hump Day!" and Trigonometry
Like any High School-age children, ours take math and are studying Trigonometry, you remember sine (SIN) and cosine (COS), cotangent (COT) and triangles, lots of triangles. By the way, that is about all that I remember about trigonometry except for the Trigonometry matchbook that had all four-digit numerical values for these various sins because the Math Textbooks were written before scientific calculators. In any case, as I was looking over our son's math homework and vaguely recalling all these terms and images. The images of Sine and Cosine became most evident when projections of the COVID -19 modeling was shown at the President's press conference from the day before. On a graph, the Sine curve "0" it slopes upward reaches an apex and then slopes downward back to "0" and then begins to curve upward again. Those are like the "waves' we see in radio waves etc. The Cosine curve does not begin at "0" on the graph but rather on ...