IBM H20-0140-1 1130 Numerical Surface Techniques and Contour Map Plotting Application free download

File name H20-0140-1_1130_Numerical_Surface_Techniques_and_Contour_Map_Plotting_Application.pdf

-- ===:. =. - - -== - -- -- - - --- --- - - ===:;:" = ~ = Application Program 1130 Numerical Surface Techniques and Contour Map Plotting Application Description This manual contains a general description of a set of programs adaptable to application areas that require the quantitative description of surfaces. These programs make numerical or analytical approximations to a set of coordinate values which define a surface, and prepare a display of the geometry of the surface in the form of a plotter contour map. CONTENTS Introduction. . . . . 1 Surface Determination 1 Surface Representation by a Square Grid 2 Surface Fitting with an Analytic Function 2 Operations on and between Surfaces '. . . . . . . 2 Graphic Display 2 Utility Routines 5 General System Flow 5 Source Language . . . 6 Minimum Configuration 6 Reference 6 This is a minor revision of, and does not obsolete, H20-0140-0. Changes do not affect the content of the manual. Copies of this and other IBM publications can be obtained through IBM branch offices. Address comments concerning the contents of this publication to IBM, Technical Publications Department, 112 East Post Road, White Plains, N. Y. 10601 INTRODUCTION In practically all of the sciences and fields of engineering there is the need to express a surface of interest analytically by an equation or numerically by a system of data points. In many of these disciplines there is the further need to express the configuration of a surface graphically in the form of contour lines on a map or chart. In order to describe the various types of data on this map or chart, it is desirable to plot symbols, to letter alphabetic data, to post numeric values, to provide headings, and to draw various types of boundary lines. This set of programs provides these functions in such a way that they may be carried out singly or in various com