"Operation not permitted on an empty polynomial." curNode = self._polyHead while curNode is not None and curNode.degree >= degree: curNode = curNode.next if curNode is None or curNode.degree != degree: return 0.0 else: return curNode.coefficient def evaluate(self, scalar): """ Eval...
This is a classical operation on reduced matrices which suggests using a form slightly stronger than reduced form called weak Popov form [36] (see Section 2.4). Assuming that A has this form ensures that its leading principal submatrix A1 has it as well. This assumption is acceptable in ...
The first term of (8) is the penalty. Piecewise-constant vectorsxksuggest that these vectors are sparse under the difference operation ∇. As an acknowledged substitute of the true sparsity measure, theℓ1-norm is widely used [33,34]. Since the vectors should bejointlysparse, we utilize ...