I have an equation built from obscure (step) functions, which I'd like to approximate in standard mathematical functions; it is quite lengthy and produces an odd geometric shape, which I cannot decipher:
Might someone assist me in finding an equation roughly following this shape? Many thanks.
By "non-obscure functions", I intended for any function built from standard operators (addition, subtraction, multiplication, division, powers) and trigonometric functions. The absolute value function may also be used, though it would be preferable if fractional part functions, sigma notation, etc. were not included - really anything seen below highschool-level precalculus.