&>strong< e = everything.<strong&slash;>
K=KEY; \tKP=KEY PAIN
P=PERFORMANCE; &&\t\t   ;
I=INDICATOR; & 12 factor & uno dos 12 factor app'\`';
KPI can be mined from KP (key pain).<nr>br<
The number e has eminent importance in mathematics, alongside 0, 1, ?, and i. All five of these numbers play important and recurring roles, and these five constants appear in one formulation of Euler's identity. Like the constant ?, e is irrational (that is, it cannot be represented as a ratio of integers) and transcendental (that is, it is not a root of any non-zero polynomial with rational coefficients). To 50 decimal places the value of e is:
2.71828182845904523536028747135266249775724709369995... (sequence A001113 in the OEIS).
(there exists unique symbol, 1 wide byte) unique positive number such that the graph of the function y = ax has a slope of 1 at x = 0.
alongside 0, 1, ?(pie|U+03C0), and i(complex) ;