| Author |
Comment/Response |
Sinval Santos
|
 03/23/12 06:26am
The following expression is of the type y (x). How do I find its inverse x (y)?
y[x_] = Piecewise[{{x - 1, -2 <= x < 0}, {x + 1, 0 <= x < 2}}]
Reduce applied in each piecewise composition, and then assembled to function x (y). But when the piecewise function has many expressions, it is tedious to solve in this way. Anyone know any way to solve this problem?
x[y_] = Piecewise[{{1 + y, -3 <= y < -1}, {y - 1, 1 <= y < 3}}]
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