I need to calculate a function of $\tanh(x)$ in Maple. The problem is that when I enter my function (or any other trigonometric functions) in Maple, the answer looks like this:
tanh(x/sqrt(6));
-116 -116
2.73949338633639 10 + 2.73949338633639 10 I
sin(x);
-116 -116
2.73949338633639 10 + 2.73949338633639 10 I
There is no problem with polynomial functions like x^2+x^5!
This can happen when the Maple kernel thinks that its license authentication has been cracked.
There have been some known cases where this detection is a false positive. The latest point-release Maple 2019.2.1 should be better, with respect to that.
Point-release upgrades are downloadable (free) from www.maplesoft.com
If you have a valid license, and are using the latest point-release for your version, and still encounter the problem then contact [email protected]
Your question is not about mathematics, per se, and so is off-topic in this forum.