int2Lfd: Convert Integer to Linear Differential Operator
Description
This function turns an integer specifying an order of a derivative into the
equivalent linear differential operator object. It is also useful for
checking that an object is of the "Lfd" class.
Usage
int2Lfd(m=0)
Arguments
m
either a nonnegative integer or a linear differential operator object.
Value
a linear differential operator object of the "Lfd" class that is
equivalent to the integer argument.