I'd be locked out.

quantim

What the heck is the door code?

K^2

2718281828 - Not sure how many digits it actually takes, but however many, they come from this sequence.

D H

The series -- you should know that on sight.

The fine print underneath the series is unreadable. It looks like "Where x is ....", but I can't read the "...".

K^2

Ah, never mind. Didn't read the fine print. Well, I suppose, I couldn't have read the fine print, but DH's guess seems right.

D H

You are assuming x=1 here. If the first line of text is, for example, "Where x=1.000", that tells an engineer how many digits it actually does take.

quantim

Am I embarrassed for not recognizing it? Let me know. ;/

D H

Yes, you are. Or you should be.

micromass

Please do not remove your posts once it has received replies.

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Borek

"Rounded to the nearest..."