The code is distributed under the BSD 3-clause license.

The text and images are distributed under the CC BY-ND 4.0 license.

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BSD 3-Clause License

Copyright (c) 2018--2022, Stan Development Team and their Assignees All

rights reserved.

Redistribution and use in source and binary forms, with or without

modification, are permitted provided that the following conditions are

met:

* Redistributions of source code must retain the above copyright

notice, this list of conditions and the following disclaimer.

* Redistributions in binary form must reproduce the above copyright

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* Neither the name of the copyright holder nor the names of its

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this software without specific prior written permission.

THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS

"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT

LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR

A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT

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THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT

(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE

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Creative Commons Attribution-NoDerivatives 4.0 International Public

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By exercising the Licensed Rights (defined below), You accept and agree

to be bound by the terms and conditions of this Creative Commons

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License"). To the extent this Public License may be interpreted as a

contract, You are granted the Licensed Rights in consideration of Your

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such rights in consideration of benefits the Licensor receives from

making the Licensed Material available under these terms and

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Section 1 -- Definitions.

a. Adapted Material means material subject to Copyright and Similar

Rights that is derived from or based upon the Licensed Material

and in which the Licensed Material is translated, altered,

arranged, transformed, or otherwise modified in a manner requiring

permission under the Copyright and Similar Rights held by the

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closely related to copyright including, without limitation,

performance, broadcast, sound recording, and Sui Generis Database

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absence of proper authority, may not be circumvented under laws

fulfilling obligations under Article 11 of the WIPO Copyright

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any other exception or limitation to Copyright and Similar Rights

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e. Licensed Material means the artistic or literary work, database,

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process that requires permission under the Licensed Rights, such

as reproduction, public display, public performance, distribution,

dissemination, communication, or importation, and to make material

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public may access the material from a place and at a time

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i. Sui Generis Database Rights means rights other than copyright

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the Council of 11 March 1996 on the legal protection of databases,

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Section 2 -- Scope.

a. License grant.

1. Subject to the terms and conditions of this Public License,

the Licensor hereby grants You a worldwide, royalty-free,

non-sublicensable, non-exclusive, irrevocable license to

exercise the Licensed Rights in the Licensed Material to:

a. reproduce and Share the Licensed Material, in whole or

in part; and

b. produce and reproduce, but not Share, Adapted Material.

2. Exceptions and Limitations. For the avoidance of doubt, where

Exceptions and Limitations apply to Your use, this Public

License does not apply, and You do not need to comply with

its terms and conditions.

3. Term. The term of this Public License is specified in Section

6(a).

4. Media and formats; technical modifications allowed. The

Licensor authorizes You to exercise the Licensed Rights in

all media and formats whether now known or hereafter created,

and to make technical modifications necessary to do so. The

Licensor waives and/or agrees not to assert any right or

authority to forbid You from making technical modifications

necessary to exercise the Licensed Rights, including

technical modifications necessary to circumvent Effective

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simply making modifications authorized by this Section 2(a)

(4) never produces Adapted Material.

5. Downstream recipients.

a. Offer from the Licensor -- Licensed Material. Every

recipient of the Licensed Material automatically

receives an offer from the Licensor to exercise the

Licensed Rights under the terms and conditions of this

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b. No downstream restrictions. You may not offer or impose

any additional or different terms or conditions on, or

apply any Effective Technological Measures to, the

Licensed Material if doing so restricts exercise of the

Licensed Rights by any recipient of the Licensed

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6. No endorsement. Nothing in this Public License constitutes or

may be construed as permission to assert or imply that You

are, or that Your use of the Licensed Material is, connected

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the Licensor or others designated to receive attribution as

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the extent possible, the Licensor waives and/or agrees not to

assert any such rights held by the Licensor to the limited

extent necessary to allow You to exercise the Licensed

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collect royalties from You for the exercise of the Licensed

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under any voluntary or waivable statutory or compulsory

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Your exercise of the Licensed Rights is expressly made subject to the

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1. If You Share the Licensed Material, You must:

a. retain the following if it is supplied by the Licensor

with the Licensed Material:

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Material and any others designated to receive

attribution, in any reasonable manner requested by

the Licensor (including by pseudonym if

designated);

ii. a copyright notice;

iii. a notice that refers to this Public License;

iv. a notice that refers to the disclaimer of

warranties;

v. a URI or hyperlink to the Licensed Material to the

extent reasonably practicable;

b. indicate if You modified the Licensed Material and

retain an indication of any previous modifications; and

c. indicate the Licensed Material is licensed under this

Public License, and include the text of, or the URI or

hyperlink to, this Public License.

For the avoidance of doubt, You do not have permission under

this Public License to Share Adapted Material.

2. You may satisfy the conditions in Section 3(a)(1) in any

reasonable manner based on the medium, means, and context in

which You Share the Licensed Material. For example, it may be

reasonable to satisfy the conditions by providing a URI or

hyperlink to a resource that includes the required

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information required by Section 3(a)(1)(A) to the extent

reasonably practicable.

Section 4 -- Sui Generis Database Rights.

Where the Licensed Rights include Sui Generis Database Rights that

apply to Your use of the Licensed Material:

a. for the avoidance of doubt, Section 2(a)(1) grants You the right

to extract, reuse, reproduce, and Share all or a substantial

portion of the contents of the database, provided You do not Share

Adapted Material;

b. if You include all or a substantial portion of the database

contents in a database in which You have Sui Generis Database

Rights, then the database in which You have Sui Generis Database

Rights (but not its individual contents) is Adapted Material; and

c. You must comply with the conditions in Section 3(a) if You Share

all or a substantial portion of the contents of the database.

For the avoidance of doubt, this Section 4 supplements and does not

replace Your obligations under this Public License where the Licensed

Rights include other Copyright and Similar Rights.

Section 5 -- Disclaimer of Warranties and Limitation of Liability.

a. UNLESS OTHERWISE SEPARATELY UNDERTAKEN BY THE LICENSOR, TO THE

EXTENT POSSIBLE, THE LICENSOR OFFERS THE LICENSED MATERIAL AS-IS

AND AS-AVAILABLE, AND MAKES NO REPRESENTATIONS OR WARRANTIES OF

ANY KIND CONCERNING THE LICENSED MATERIAL, WHETHER EXPRESS,

IMPLIED, STATUTORY, OR OTHER. THIS INCLUDES, WITHOUT LIMITATION,

WARRANTIES OF TITLE, MERCHANTABILITY, FITNESS FOR A PARTICULAR

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ACCURACY, OR THE PRESENCE OR ABSENCE OF ERRORS, WHETHER OR NOT

KNOWN OR DISCOVERABLE. WHERE DISCLAIMERS OF WARRANTIES ARE NOT

ALLOWED IN FULL OR IN PART, THIS DISCLAIMER MAY NOT APPLY TO YOU.

b. TO THE EXTENT POSSIBLE, IN NO EVENT WILL THE LICENSOR BE LIABLE

TO YOU ON ANY LEGAL THEORY (INCLUDING, WITHOUT LIMITATION,

NEGLIGENCE) OR OTHERWISE FOR ANY DIRECT, SPECIAL, INDIRECT,

INCIDENTAL, CONSEQUENTIAL, PUNITIVE, EXEMPLARY, OR OTHER LOSSES,

COSTS, EXPENSES, OR DAMAGES ARISING OUT OF THIS PUBLIC LICENSE OR

USE OF THE LICENSED MATERIAL, EVEN IF THE LICENSOR HAS BEEN

ADVISED OF THE POSSIBILITY OF SUCH LOSSES, COSTS, EXPENSES, OR

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c. The disclaimer of warranties and limitation of liability provided

above shall be interpreted in a manner that, to the extent

possible, most closely approximates an absolute disclaimer and

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Section 6 -- Term and Termination.

a. This Public License applies for the term of the Copyright and

Similar Rights licensed here. However, if You fail to comply with

this Public License, then Your rights under this Public License

terminate automatically.

b. Where Your right to use the Licensed Material has terminated under

Section 6(a), it reinstates:

1. automatically as of the date the violation is cured, provided

it is cured within 30 days of Your discovery of the

violation; or

2. upon express reinstatement by the Licensor.

For the avoidance of doubt, this Section 6(b) does not affect any

right the Licensor may have to seek remedies for Your violations

of this Public License.

c. For the avoidance of doubt, the Licensor may also offer the

Licensed Material under separate terms or conditions or stop

distributing the Licensed Material at any time; however, doing so

will not terminate this Public License.

d. Sections 1, 5, 6, 7, and 8 survive termination of this Public

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Section 7 -- Other Terms and Conditions.

a. The Licensor shall not be bound by any additional or different

terms or conditions communicated by You unless expressly agreed.

b. Any arrangements, understandings, or agreements regarding the

Licensed Material not stated herein are separate from and

independent of the terms and conditions of this Public License.

Section 8 -- Interpretation.

a. For the avoidance of doubt, this Public License does not, and

shall not be interpreted to, reduce, limit, restrict, or impose

conditions on any use of the Licensed Material that could lawfully

be made without permission under this Public License.

b. To the extent possible, if any provision of this Public License is

deemed unenforceable, it shall be automatically reformed to the

minimum extent necessary to make it enforceable. If the provision

cannot be reformed, it shall be severed from this Public License

without affecting the enforceability of the remaining terms and

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c. No term or condition of this Public License will be waived and no

failure to comply consented to unless expressly agreed to by the

Licensor.

d. Nothing in this Public License constitutes or may be interpreted

as a limitation upon, or waiver of, any privileges and immunities

that apply to the Licensor or You, including from the legal

processes of any jurisdiction or authority.

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