Fitting a sinusoidal function to three known points

Question

I have 3 points from a sine wave and I need to determine the sine function from this. There is a very similar question, but this question is with $-30°$, $0°$ and $+30°$: Fitting a sinusoidal function to three known points separated by $30$ degrees

The only difference is that I have 3 points on 3 different random angles.

All help is wellcome, I haven't done this in 20 years. Thanks,

Emiel Peeters

The procedure in the accepted answer of that post works for arbitrary angles. — Jolien, May 22 '15 at 07:27

score 0 · Answer 1 · answered May 23 '15 at 13:13

0

In the other example you can scrap easily because the angles are -A and +A and 0. All my 3 angles are random ex: 10, 50 and 75 degrees.

answered May 23 '15 at 13:13

user242894

1

This is better as a comment to the question, rather than an answer. – Ken May 23 '15 at 13:18

1 Answers1