Issue with variable e

[arnoutvreugdenhil]

If you supply a variable named e, the number e is used instead of the supplied value.
Maybe throw an exception when a variable named e is supplied?

[wi-wissen]

We also had some difficulties today because we didn't know that 'e' was used as a constant. Probably the letters 'i' are also affected:

math-parser/src/MathParser/Interpreting/Evaluator.php

Line 344 in 43b30d5

case 'e':

I think the function is great, but I would also like to suggest that you include it in the readme.

[mossadal]

Thank you both for the report, I'll give it some thought and get back to you, hopefully next week..

[lkrzysiak]

This issue is still not fixed. Is this project abandoned ?