Free Knowledge Resources


Linux Manual Pages


Free Software * Books

Source Code

Free Media

Linux

dspnt3d(3NCARG)


NAME

   DSPNT3D  -  Interpolate  at  a single point (or points) in 3D in double
   precision

SYNOPSIS

   CALL DSPNT3D (N, X, Y, Z, U, M, XO, YO, ZO, UO, IER)

DESCRIPTION

   N           (Integer, Input) - The number of input data points.

   X           (Double precision, Input)  -  An  array  containing  the  X
               coordinates of the input data points.

   Y           (Double  precision,  Input)  -  An  array  containing the Y
               coordinates of the input data points.

   Z           (Double precision, Input)  -  An  array  containing  the  Z
               coordinates of the input data points.

   U           (Double   precision,  Input)  -  An  array  containing  the
               functional values of the input data points. That  is,  U(L)
               is   the   value   of  the  input  function  at  coordinate
               (X(L),Y(L),Z(L)), for L=1,N.

   M           (Integer, Input) - The number of output data  points  (this
               may be "1").

   XO          (Double  precision,  Input)  -  An  array  of  dimension  M
               containing the X coordinates of the output data. The values
               in XO may be in any order.

   YO          (Double  precision,  Input)  -  An  array  of  dimension  M
               containing the Y coordinates of the output data. The values
               in YO may be in any order.

   ZO          (Double  precision,  Input)  -  An  array  of  dimension  M
               containing the Z coordinates of the output data. The values
               in ZO may be in any order.

   UO          (Double  precision,  output)  -  An  array  of  dimension M
               containing  the   interpolated   values.   UO(I)   is   the
               interpolated value at point (XO(I),YO(I),ZO(I)) for I=1,M.

   IER         (Integer,  Output)  -  An  error  return  value.  If IER is
               returned as 0, then no errors were detected. If IER is non-
               zero,  then  refer  to  the  man page for dsgrid_errors for
               details.

USAGE

   This subroutine is called when you want to interpolate at an individual
   point or points.

ACCESS

   To use DSPNT3D, load the NCAR Graphics library ngmath.

SEE ALSO

   dsgrid, dsgrid_params.

   Complete documentation for Dsgrid is available at URL
   http://ngwww.ucar.edu/ngdoc/ng/ngmath/dsgrid/dshome.html

COPYRIGHT

   Copyright (C) 2000
   University Corporation for Atmospheric Research

   The use of this Software is governed by a License Agreement.



Opportunity


Personal Opportunity - Free software gives you access to billions of dollars of software at no cost. Use this software for your business, personal use or to develop a profitable skill. Access to source code provides access to a level of capabilities/information that companies protect though copyrights. Open source is a core component of the Internet and it is available to you. Leverage the billions of dollars in resources and capabilities to build a career, establish a business or change the world. The potential is endless for those who understand the opportunity.

Business Opportunity - Goldman Sachs, IBM and countless large corporations are leveraging open source to reduce costs, develop products and increase their bottom lines. Learn what these companies know about open source and how open source can give you the advantage.



Free Software


Free Software provides computer programs and capabilities at no cost but more importantly, it provides the freedom to run, edit, contribute to, and share the software. The importance of free software is a matter of access, not price. Software at no cost is a benefit but ownership rights to the software and source code is far more significant.

Free Office Software - The Libre Office suite provides top desktop productivity tools for free. This includes, a word processor, spreadsheet, presentation engine, drawing and flowcharting, database and math applications. Libre Office is available for Linux or Windows.



Free Books


The Free Books Library is a collection of thousands of the most popular public domain books in an online readable format. The collection includes great classical literature and more recent works where the U.S. copyright has expired. These books are yours to read and use without restrictions.

Source Code - Want to change a program or know how it works? Open Source provides the source code for its programs so that anyone can use, modify or learn how to write those programs themselves. Visit the GNU source code repositories to download the source.



Education


Study at Harvard, Stanford or MIT - Open edX provides free online courses from Harvard, MIT, Columbia, UC Berkeley and other top Universities. Hundreds of courses for almost all major subjects and course levels. Open edx also offers some paid courses and selected certifications.

Linux Manual Pages - A man or manual page is a form of software documentation found on Linux/Unix operating systems. Topics covered include computer programs (including library and system calls), formal standards and conventions, and even abstract concepts.


birds banner