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#1
December 13th 07, 07:16 PM
posted to rec.radio.amateur.antenna
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Standing Wave Phase in Loaded Mobile Antennas
John Smith wrote:
There is no "built in" cotan function on my ti-86, ti-83, etc. Poor guy - why can't you do cotangent functions in your head? :-) Help me out Cecil, anyone? How about: cot(x) = tan(90-x) cot(10) = tan(80) = 5.67 -- 73, Cecil http://www.w5dxp.com |
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#2
December 13th 07, 09:58 PM
posted to rec.radio.amateur.antenna
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Standing Wave Phase in Loaded Mobile Antennas
Cecil Moore wrote:
... Poor guy - why can't you do cotangent functions in your head? :-) ... Cecil: The extremly difficult will take me a couple of minutes ... The impossible takes just a bit more time. :-) I AM NOT A GURU! yanno? LOL Regards, JS |
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#3
December 14th 07, 12:10 AM
posted to rec.radio.amateur.antenna
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Standing Wave Phase in Loaded Mobile Antennas
Cecil Moore wrote:
John Smith wrote: There is no "built in" cotan function on my ti-86, ti-83, etc. Poor guy - why can't you do cotangent functions in your head? :-) Help me out Cecil, anyone? How about: cot(x) = tan(90-x) cot(10) = tan(80) = 5.67 Geesh, I had it, but sure didn't look right ... a walk around the block and letting things go put all back to right ... CoT(10) = (1/tan(10)) damn ... moments like these are humbling ... Sometimes my progress forward is "inversely proportional" to the energy I apply ... ;-) Regards, JS |
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