Background Information

The California Institute of Technology, Caltech, owns the original software developed at JPL.   In all cases Math à la Carte owns the modifications that have been made to the software since it was obtained from original sources.

With the exception of those from countries or entities to which the U.S. government prohibits exports (see below), all others are free to download the software in order to try it.   In all such cases you have a legal obligation to delete all your copies of this software (and to tell us you did so), should you choose not to use it.

Things you May Want to Know
Special notes for C users
Free Use
What We Sell
Pricing and Payments
Types of Support
Don't Download this Software Until You Are Ready to Use It
This Software has Bugs!     (And Other Legal Stuff)
Export controls

Things You May Want to Know

Machine dependencies:   Many of the Fortran codes require a subroutine amach, which provides information about the floating point arithmetic of the computer.   The default version of amach is for ieee floating point, which is appropriate for almost all current microprocessors.   There is a link for accessing the various versions when amach is needed.

If you want more than one version it is easy to convert amach to a different version once you have downloaded it.   (amach is not distributed in the mangled form.)   One simply needs to comment certain lines for the machine you have specified, and remove comments for the machine which you want.   If you are in doubt, choose the ieee default.   If you make the wrong choice, you will almost certainly get a diagnostic the first time an entry in amach is called.

Documentation files are given in three basic formats.

To view these files directly from your browser, you may need to configure your browser to call the appropriate program.

Codes are distributed as .tar.gz files or as .zip files.   To unpack .tar.gz files, if you use gnu tar, which might be called either "tar" or "gtar" on your system, simply "tar xzf file.tar.gz", if you don't have gnu tar, you can use "gzip -d -c file.tar.gz | tar xf -".   In the case of zip files you will probably do something like "unzip file.zip".

You must register in order to download anything.   Details on registering can be found at mom help or you can simply register by clicking here.

If you got this far, you should know that clicking on a highlighted area of a page either takes you to a new web page, or will download a file.   On many browsers when you click with the right mouse button, you are given an option of how you want to save the result.   For environments that support this, we recommend this be used for downloading programs.

A special note for C users

Free Use

• Classroom use, i.e. for use in an instructional setting.
• To compare codes here with other mathematical software.   Your results should be posted with "mom" as a comment on the code.   We recommend you email us the results prior to posting as doing so may improve the quality of what you post.
• Hobby use.   Thesis work falls in this category.   Also if you are starting a business with no capital, you can use this software while getting started with the understanding that you will pay the usual rates when your venture has some income.

If you use the software, but are not paying for it, send an email to malc@mathalacarte.com and tell us in a few words how you are using the software.   If you download the software and then don't use it, you should let us know that you have deleted all your copies of it.   There is no support for this software to those who have not paid for it, except for those using it as part of teaching a class or for those doing an evaluation.

This software is not free for research work if you are paid a salary and there is some kind of encouragement from the source of that salary to produce research papers or code.   Since we would like to support research, if you provide a link in "mom" to a published refereed research paper which makes a reference to the use of a Math à la Carte package we will give you a credit for 100% of the single user base price. This credit is given only once for a given code, and does not apply to licenses for the entire library.

What We Sell

• A license to use our Mathematical Software which you can download and try before buying.   There is no time limit on the license and it can be transferred.   The license only includes the right to sell this software as part of a package.   It does not allow you to sell or distribute the software for direct use by others.   To be more explicit you are not allowed to distribute the software in a form that exposes the API (Application Programming Interface) of our code to those you distribute the software to as part of your package or to sell it as part of a package that is little more than a wrapper that avoids exposing this interface.
• Almost all of the software is available in both ANSI Fortran 77 and ANSI C.   The Fortran 77 code can also be used with Fortran 90 compilers.
• The software is distributed in source code form, but has been "mangled" so as to make it difficult for the human reader to understand.   (This is if anything, an understatement.   Think of this code as like a binary which can be used on any machine which has the required compiler.)
• Support is available and is priced separately.
• The original source is available, but requires a signed nondisclosure agreement, and in some cases costs significantly more.   The actual prices for the original source, the base price for a single user, and the factors applied to that price for support are given on the individual web pages for the software.   If you purchase the original source, you are free to modify it as you wish, but may not distribute such source code or the original source to third parties.   (You may if you wish modify the mangled code with the same rights to redistribution of it that you have for the unmodified mangled code.) We will pay you for the rights to your modifications if mutually agreeable terms can be reached.   The original source includes that source that provides the core part of a package.   If you want the original source for parts of the package that depend on other parts of our library, you will need to purchase that separately.   Examples are routines needed for error message processing, and some single dimensional routines needed by their multidimensional counterparts.
• You can get the clean source for free if you can make a convincing case that you have the interest and capability to make modifications or additions that will add value to the package.

Pricing and Payments

• You can pay with a check made out to Math à la Carte, or (someday) by filling out a credit card form on one of our web pages.
• Your purchase must include a license for at least one coder/developer, defined as anyone who writes code in a module which makes a direct call to our software. If more than 100 developers are involved, you must buy a separate license for each group of 100.   Aside from coders/developers, a license for 255 is equivalent to a license for an infinite number.
• We try to give you a better deal than you would get for equivalent software from some other commercial software vendor.   You need to pay for only what you are actually using.
• The entire Fortran or entire C library may also be purchased at a significant discount over the price of the individual routines.   In this case the mangled source code is to be made available only to those who maintain the libraries on this particular machine.   If any of this software is to be used on another machine and there is more than one user, it must be purchased separately.
• The price to you depends on how many people are using the software, whether it is distributed externally, and on whether source code is distributed to end users.   For some of the more complicated routines, the price also depends on the features in the code that you are licensed to use.   For more details on the pricing algorithm, go here.
• Although the pricing scheme is complicated, our web pages give the price of the software and support when you indicate the type of use, how many are using it, and (in some cases) the features being used, etc.
• We don't deal in refunds.   You don't pay until you know you want to use the software.
• We expect you to be honest on the number of users.   If the number of users should become a factor of 2 or more larger than the number you have indicated, you should buy additional licenses for these additional users.   Since there is a volume discount, it may pay you to license the software for more users than will be using it initially.
• We also expect you to pay for any features that you did not license initially.   When you make payment, you will be E-Mailed comments to insert in one of the programs you have downloaded.   The software is not considered to be licensed for commercial use until these comments have been inserted. These comments will define precisely the features and conditions of your license.
• Any profits will be used to support work in mathematical software.   Math à la Carte will not go public, and the corporation will always be controlled by a technical person.

Types of Support

• When a bug is discovered, we will attempt to correct it as soon as possible.   All those who have paid to use the software will be notified by E-Mail of the correction that has been made and will be allowed to download the corrected code for no charge.   It is up to you to keep us up to date on your E-Mail address, which you can do here if you are already registered.
• All users who have paid for the software will be notified of new features added to codes.
• Support which costs p the first year, is priced at p/4 per year for renewals.   This support is meant primarily to help you track down problems in your code.   If you or we discover a bug in Math à la Carte software in this process, two free years will be added to your support contract.
• Help in setting up your application to use our software is p the first year and p/4 for renewals.
• Prices are twice those quoted if you do not obtain the support within one month of the initial download.   (Thus twice those quoted if you download the software and then decide more than a month later to pay for it, see below.)

Don't Download this Software Until You Are Ready to Use It

• Your support is priced from the time of the initial download, and if it is not purchased within the first month after this download, it is more expensive.
• You are expected to pay for the software within 1 month of downloading it, or to tell us on a monthly basis when payment can be expected.   Of course if you decide upon using the software that you are not interested in it, you can let us know you have deleted your copies.
• Sometimes (rarely) the software is updated, and it is to your advantage not to encounter a bug that has already been fixed.

This Software has Bugs!     (And Other Legal Stuff)

If despite this warning you feel a law suit with Math à la Carte is necessary for any reason, you agree not to use the software unless you are willing to have all legal actions take place in the court district of our corporate offices using the laws of the State which contains that district.   (Currently Los Angeles, CA, USA.)   In addition by using this software you agree that Math à la Carte is liable only up to the amount you have paid for software and support, and whatever the circumstances is to amount to no more than that.

By downloading this software you agree that you recognize this software is protected by copyright and other intellectual property laws.   You also recognize that you have only the rights to those features of the software you have paid for even though the software may contain functionality that goes beyond what you have paid for.   Furthermore, you recognize that Math à la Carte intends to vigorously protect its intellectual property.

Export Controls

By downloading any of this software, you affirm that:

• You are not a citizen, national, or resident of, and are not under control of, the government of Angola, Cuba, Iran, Iraq, Libya, North Korea, Sudan, Syria, Rwanda, Serbia & Montenegro, North Korea, Sudan, Syria, nor any other country to which the United States has prohibited export.
• You will not download or otherwise export or re-export the Software, directly or indirectly, to the above mentioned countries nor to citizens, nationals or residents of those countries.

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Before downloading software or getting an invoice, you must let us know that you have read this license and agree to its terms.   The only way to let us know this is to click on one of the choices below (this need only be done once):
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Revised: July, 25, 2003