HP15C HP42S integration of trig differs in *rad and *deg
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04-27-2018, 10:46 PM
Post: #7
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RE: HP15C HP42S integration of trig differs in *rad and *deg
(04-27-2018 07:05 PM)hansepie Wrote: f(x) = sin(x) You are not getting different answers. You are getting the same answer in different units because 1 radian = 57.2958 degrees. If the upper and lower limits are in radians, so is the answer. If they are in degrees, so is the answer. As a simple example of this: A square that is 10m on a side has an area of 100m^2 A square that is 32.8083ft on a side has an area of 1076.391ft^2 The answers are the same because 10m = 32.8083ft and 100m^2 = 1076.391ft^2 John P.S. For you mathematicians, I know that the equal signs above should probably be a double-ended arrow. Couldn't figure out how to reproduce a double-ended arrow in this posting. |
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