/ -1 for x <= -1 | | 0 for x < 0 | | 1 <------- for x >= 1 | ___ |2*\/ x | | 0 otherwise \
Piecewise((-1, x <= -1), (0, x < 0), (1/(2*sqrt(x)), x >= 1), (0, True))
Piecewise((-1.0, x <= -1), (0, x < 0), (0.5*x^(-0.5), x >= 1), (0, True))
Piecewise((-1.0, x <= -1), (0, x < 0), (0.5*x^(-0.5), x >= 1), (0, True))