Why do business calculators have log/exp but not basic trig functions?

[pier4r]

(02-19-2018 10:36 PM)TheKaneB Wrote:  logs and antilogs are used in the TVM equation: ref. http://www.voidware.com/tvm.htm

Sine and Cosine, to the best of my knowledge are not used in any commonly occurring financial equation, so if the hardware have hard limits on memory then it's understandable that they aren't implemented.

I always forget that normally y^x is done with e^(x*log(y)) therefore if they have powers they also have log/exp.

@Dave: wouldn't it be powers (and the basic 4 functions)? Only at the limit of periods (infinite) or the rate (infinitesimal) you have the exponential function. Anyway - in practice - who is going to pay for infinite time or continuous rates?