biz NdZddlmZmZddlZddlmZddlm Z GddeZ y)a0 Copyright 2022, the CVXPY authors Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at http://www.apache.org/licenses/LICENSE-2.0 Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License. )ListTupleN) Elementwise) ConstraintceZdZdZdfd Zej dZdee e ffdZ de fdZ de fdZ de fdZ de fd Zde fd Zde fd Zd Zdeefd ZxZS)xexpz#Elementwise :math:`{x}*e^{x}`. returnc,tt| |y)N)superr__init__)selfx __class__s W/home/cdr/jupyterlab/.venv/lib/python3.12/site-packages/cvxpy/atoms/elementwise/xexp.pyr z xexp.__init__s dD"1%c>|dtj|dzS)Nr)npexp)r valuess rnumericz xexp.numeric!say266&),,,rcv|jdj|jdjfS)zCReturns sign (is positive, is negative) of the expression. r)args is_nonneg is_nonposr s rsign_from_argszxexp.sign_from_args%s1 ! &&($))A,*@*@*BCCrc<|jdjS)zIs the atom convex? r)rrrs ris_atom_convexzxexp.is_atom_convex+syy|%%''rcy)zIs the atom concave? Frs ris_atom_concavezxexp.is_atom_concave0rcy)z$Is the atom log-log convex? Tr rs ris_atom_log_log_convexzxexp.is_atom_log_log_convex5rcy)z%Is the atom log-log concave? Fr rs ris_atom_log_log_concavezxexp.is_atom_log_log_concave:r"rcy)z;Is the composition non-decreasing in argument idx? Tr r idxs ris_incrz xexp.is_incr?r%rcy)z;Is the composition non-increasing in argument idx? Fr r)s ris_decrz xexp.is_decrDr"rc|jdj}|j}tj|dd|dzz}tj |||gS)a+Gives the (sub/super)gradient of the atom w.r.t. each argument. Matrix expressions are vectorized, so the gradient is a matrix. Args: values: A list of numeric values for the arguments. Returns: A list of SciPy CSC sparse matrices or None. r)rsizerrrelemwise_grad_to_diag)r rrowscols grad_valss r_gradz xexp._gradIsWyy|  yyFF6!9%VAY7 **9dDABBrc(|jddk\gS)z?Returns constraints describing the domain of the node. r)rrs r_domainz xexp._domainYs ! !""r)r N)__name__ __module__ __qualname____doc__r r numpy_numericrrboolrrr!r$r'r+r-r5rrr7 __classcell__)rs@rrrs&--DdDj 1D ((    d d C #j)#rr) r;typingrrnumpyr#cvxpy.atoms.elementwise.elementwisercvxpy.constraints.constraintrrr rrrCs& ;3C#;C#r