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Derivative:

d\/dx(Si(x)^2) = 2 sinc(x) Si(x)


Alternate form:

(2 Si(x) sin(x))\/x


Series expansion at x=0:

2 x - (4 x^3)\/9 + (26 x^5)\/675 + O(x^6)\n(Taylor series)


Series expansion at x=∞:

sinc(x) cos(x) (-2\/x + 4\/x^3 - 48\/x^5 + O((1\/x)^6)) + sinc(x) sin(x) (-2\/x^2 + 12\/x^4 + O((1\/x)^6)) + pi sinc(x)


Indefinite integral:

 integral (dSi(x)^2)\/(dx) dx = (Si(x)^2 sin(x))\/(x sinc(x)) + constant

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