GRQUICK.m (21. See the example notebook for specific notation on tensors.Įinstein, tensor, physics, general relativity, schwarzschild, metric, field equations, vector, black hole, black-hole, covariant derivative, geodesics, geodesic plotting Mathematica Wolfram Demonstrations Wolfram for Education MathWorld This website uses cookies to optimize your experience with our services on the site. Given an NxN metric and an N-dimensional coordinate vector, GRQUICK can calculate the: Christoffel symbols, Riemann Tensor, Ricci Tensor, Ricci Scalar, and Einstein Tensor.Īlong with calculating the above tensors, GRQUICK can be used to: manipulate four vectors in curved space, define tensors, display the geodesic equations, take covariant derivatives of tensors, and plot geodesics. Assuming 'degree symbol' is a character Use as a Wolfram Language symbol instead. GRQUICK is a Mathematica package designed to quickly and easily calculate/manipulate relevant tensors in general relativity. Finance, Statistics & Business Analysisįor the newest resources, visit Wolfram Repositories and Archives ».Wolfram Knowledgebase Curated computable knowledge powering Wolfram|Alpha. The full notebook interface to Mathematicarequiring as it does the whole X Window stackcan be a trifle sluggish by modern standards (and we had to switch a few things off by default, like our new Predictive Interface, because they just slowed things down too much). It starts with simple input and output examples, but quickly moves on to visualising data with 2D and 3D graphics and performing advanced calculus, probability, and. The command-line Wolfram Language is quite zippy on the Raspberry Pi. Often, however, you need to replace a symbol like x with a definite. In such cases, x is a symbol which can stand for any expression. Values for Symbols When Mathematica transforms an expression such as x+x into 2x, it is treating the variable x in a purely symbolic or formal fashion. Wolfram Universal Deployment System Instant deployment across cloud, desktop, mobile, and more. This hands-on book, written by three Wolfram Language authors, is packed with detailed examples for all the impressive things you can do with Mathematica. Some points to watch when using variables in Mathematica. Wolfram Data Framework Semantic framework for real-world data.
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