1. ## Trigonometry (2000)

I'm trying to put together a quick trig calculator in Excel, but I can't seem to get the SIN, COS & TAN functions to give the appropriate result. I've tried the help file, hah! Useless!

Can anybody help me with the appropriate syntax?

TIA
Paul

2. ## Re: Trigonometry (2000)

Are you aware that the trigonometric functions use radians as unit for angles? (360 degrees = 2*pi radians)

If you want to calculate the sine etc. of an angle specified in degrees, insert the RADIANS function, e.g. SIN(RADIANS(30)) or TAN(RADIANS(45)).

3. ## Re: Trigonometry (2000)

Ooer, this is a little more than I know about. Never mind, I did try it & still can't get the thing quite right. I do have a calculation I did long hand to check it.

It's purely the finding of either the length or angle in a right-angled triangle. The sample one I have has an angle of 35

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