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The Kruskal–Szekeres coordinates also apply to space-time around a spherical object, but in that case do not give a description of space-time inside the radius of the object. Space-time in a region where a star is collapsing into a black hole is approximated by the Kruskal–Szekeres coordinates (or by the Schwarzschild coordinates). The ...
The original PC Tools package was first developed as a suite of utilities for DOS, released for retail in 1985 for $39.95. [1]With the introduction of version 4.0, the name was changed to PC Tools Deluxe, and the primary interface became a colorful graphical shell (previously the shell resembled PC BOSS and was monochrome.)
trace mode: cross-hair following plot, coordinates shown in the status bar; zooming support; ability to draw the 1st and 2nd derivative and the integral of a plot function; support user-defined constants and parameter values; various tools for plot functions: find minimum/maximum point, get y-value and draw the area between the function and the ...
An R-square of 0.6 is considered the minimum acceptable level. [citation needed] An R-square of 0.8 is considered good for metric scaling and .9 is considered good for non-metric scaling. Other possible tests are Kruskal’s Stress, split data tests, data stability tests (i.e., eliminating one brand), and test-retest reliability.
This feature allows you manually navigate to a PFC file on your computer and to import data from that file. 1. Sign in to Desktop Gold. 2. Click the Settings icon. 3.
PC Tools (formerly known as WinGuides [1]) was a software company founded in 2003 [2] and acquired by Symantec in 2008; the new owner eventually discontinued the PC Tools name. Company headquarters were in Australia, with offices in Luxembourg, the United States, United Kingdom, Ireland, and Ukraine.
In 1985, CPS released PC Tools, an integrated graphical DOS shell and utilities package. PC Tools was an instant success and became Central Point's flagship product, and positioned the company as the major competitor to Peter Norton Computing and its Norton Utilities and Norton Commander. CPS later manufactured a Macintosh version called Mac Tools.
Penrose diagram of an infinite Minkowski universe, horizontal axis u, vertical axis v. In theoretical physics, a Penrose diagram (named after mathematical physicist Roger Penrose) is a two-dimensional diagram capturing the causal relations between different points in spacetime through a conformal treatment of infinity.