The sum of this operation applied twice with respect to each (*) variable is the Laplacian.
An operator on the complex projective line that is zero for any fractional linear transformation is called the Schwarzian one. The digamma function is given by this operation applied to the log of the gamma function. This operation can be taken nowhere on the Weierstrass function. The sum of this operation applied twice with respect to each (*) variable is the Laplacian. For functions of two or more variables, the partial form of this must be taken with respect to one variable at a time. At a critical point, this operation is nonexistent or equal to zero. For 10 points, name this operation on a function which, for p to the x, is equal to x times p to the x – 1, the opposite of an integral.
An operator on the complex projective line that is zero for any fractional linear transformation is called the Schwarzian one.
{derivative} [accept {differentiation}]