I know 5 simple ways to get the e number. Do you know more?

[ValeryOchkov]

See please the attach (Prime 3.1) too

[StuartBruff]

Stuart

[ValeryOchkov]

Thanks, Stuart!

Но иная простота хуже воровства!

We need 7-th! 7 is one fine digit!

[StuartBruff]

[Werner_E]

How about this

Unfortunately Mathcad is bot capable to simplify to e but it knows that the expression equals e.

And here is a funny one - does muPad really think that the equations is true for a=1 ???

WE

[ValeryOchkov · Accepted solution]

e=2.7+2*Leo Tolstoy - A lot of students in Russia know it!

[mnori]

I know this mnemonic poem in Italian, I think it works for me since it was quoted in the Differential calculus book  I had as first year university student : 2.718281828459

Ai (2)  modesti (7) o (1) vanitosi (8)
ai (2) violenti (8) o (1) timorosi (8)
do (2) cantando (8) gaio (4) ritmo (5)
logaritmo.(9)

[ValeryOchkov]

A rainbow

«Каждый охотник желает знать, где сидит фазан»

(красный, оранжевый, жёлтый, зелёный, голубой, синий, фиолетовый).

In English

"Richard of York gave battle in vain"