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tand function in excel?

tand function in excel?

(OP)
I found an equation in a Journal article and I'm trying to write it into a spreadsheet. The problem is 1) I'm not sure what the tand functional actually is and 2) Excel doesn't seem to have it as a built in function. One of hte footnotes told me it was a Tangent Delta function, but Google isn't being too helpful in finding out what that means. Can anyone point me towards a resource that explains it? Based on the explanation I'm hoping I can figure out a way to calculate it in Excel. If someone can tell me if it's hidden in Excel somewhere that would also be very helpful.

Generalized a bit, the formula is R = k*tand(C)

Thanks in advance.

RE: tand function in excel?

(OP)
If that's all it is, then that's easy. Is there such thing as a Tangent Delta function? Is the foot note just wrong or something? I'm thinking I should contact the author and ask what's up.

RE: tand function in excel?

I don't know why I'm Googling for you???

http://www.electrotechnik.net/2009/05/tan-deltates... (there may be others, but you made no statement to clarify the direction of interest)

But I suppose I'm genuinely curious and do learn things by doing some digging on occasion.

Do you have some other research you would like the members here at Eng-Tips to perform on your behalf?

Skip,

glassesJust traded in my OLD subtlety...
for a NUance!tongue

RE: tand function in excel?

Are you sure the delta isn't actually an angle? I've never seen a tanδ mathematical function - I have however seen plenty of δ angles in engineering text books.

RE: tand function in excel?

Just curious, does this paper you were reading have anything to do with testing electrical insulation?

=====================================
(2B)+(2B)' ?

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