That's the basic form of a logarithm. I think.
Odd shape:
cool thingThe solution is:
y = (-529254000000000000 x^7+1693612800000000000 x^6+117414999900000000 x^4-124903944000000000000 x^3+101087514000000000000 x^2+sqrt((-529254000000000000 x^7+1693612800000000000 x^6+117414999900000000 x^4-124903944000000000000 x^3+101087514000000000000 x^2)^2-104792292000000000000000000000000 x^3))^(1/3)/(2970000 2^(1/3) x)+(10000 2^(1/3))/(-529254000000000000 x^7+1693612800000000000 x^6+117414999900000000 x^4-124903944000000000000 x^3+101087514000000000000 x^2+sqrt((-529254000000000000 x^7+1693612800000000000 x^6+117414999900000000 x^4-124903944000000000000 x^3+101087514000000000000 x^2)^2-104792292000000000000000000000000 x^3))^(1/3)
Or a wave:
my wave