With a license by the screen, you need a separate license (or unit of multiple-unit license) for each physical screen on which our software (in source code or linkable form) is actually used. A workstation screen, a PC or Macintosh screen, or a thin client or dumb terminal each count as a single screen. (Multiple monitors directly attached to the same video card and displaying the same user desktop count as a single screen, however.) You must specify which physical screen(s) your license(s) is/are attached to. We do not offer "floating" licenses.
There are quantity discounts for multiple units (see chart), and for licenses including both C and FORTRAN. Special rates are offered to educational institutions and similar not-for-profit organizations.
Site or corporation-wide licenses, or licenses involving changes to our standard shrinkwrap terms, are available with fees starting at $2500.
When you buy Numerical Recipes media (diskette or CDROM) published by Cambridge University Press, a single screen license for a particular type of computer is included. The license terms are substantially identical to our single-screen shrinkwrap terms. You are not authorized to transfer the programs to any computer other than the type specified in the included license, nor to use the programs on more than a single screen.
Further information:
current price list
text of single screen license
sample text of site license