Correct layout of e^/LN/10^/LOG?

[rprosperi]

(10-24-2024 10:58 PM)dm319 Wrote:  

(10-24-2024 10:28 PM)naddy Wrote:  A tangentially related issue is the inclusion, or lack thereof, of the hyperbolic functions:

Ok now is as good a time as any to ask how did we decide on sin, cos and tan? Why not sec, sin and tan (and co-sec, cosine and cot on shifted functions?). Is it simply that cos/sin/tan are more useful? Actually I don't even know what the 'co' means come to think of it.

"The prefix ''co'' links sine with cosine, tangent with cotangent, and secant with cosecant. These pairs are called cofunctions. Cofunctions are linked through complementary angles, meaning they add to 90o. Two angles are complementary if they add to 90o" (blatantly stolen from google search results)

As for hyperbolics, the only engineering application I recall is that for a chain between posts (aka the 'catenary problem') the depth of the drop in the center due to gravity is calculated using hyperbolic cosine.

Are there practical applications which can be solved using hyperbolics in Electrical and Electronic engineering?