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Mathematica not equal symbol1/18/2024 ![]() ![]() UnsameQ (which may be input as …=!= …) is the converse of SameQ. Set (which may be input using the "single equals" syntax expr 1= expr 2) evaluates expr 2 and assigns the result to be the value of expr 1, while Equal (which may be input using the "double equals" syntax expr 1= expr 2) returns True if expr 1 and expr 2 are numerically equal. SameQ is related to a number of other symbols.(Alternately, SameQ may be used after first converting graphs to canonical form using CanonicalGraph.) In the case of graphs, IsomorphicGraphQ should be used to check sameness up to isomorphism. SameQ considers only literal correspondence, not isomorphism.This behavior is expressly different from that exhibited by Equal, which performs equality testing and remains unevaluated in cases that cannot be resolved. For example, SameQ and SameQ both return False. On the other hand, SameQ differentiates between representations of numbers that are numerically equal but that do not have identical representations. Different input forms of expressions may be SameQ if their underlying representations are identical, for example n! = Factorial returns True.The multiple-argument form SameQ, which may also be input as expr 1= expr 2= …, returns True if and only if all expressions expr i are identical. SameQ may be input using triple equal signs as expr 1= expr 2. Here, "identical" means there is exact correspondence between the underlying FullForm representations of expressions expr 1 and expr 2, with the exception that real numbers are considered SameQ if they differ only in their last binary digit. SameQ returns True if expr 1 is identical to expr 2 and otherwise returns False.There are several other bugs that can produce uncompilable LaTeX output.įinally, even if you decide to export the whole document to LaTeX, it will generally be necessary to go through the source with a text editor to clean up formatting problems.*)īecause inter-word spaces are omitted upon export. Avoid comments in Mathematica code of the type (*.(that's poor man's bold, and it deserves the name) The Mathematica function TeXForm produces a LaTeX representation of a syntactically correctĮxpression, often trying to apply conventional typesetting rules. Create LaTeX code from arbitrary Mathematica expressions:.This is a selective approach that works well when you aren't interested in moving text between Mathematica and LaTeX, only equations: If you're not interested in using LaTeX, look instead at converting Mathematica formulas to PDF. Although LaTeX code is semantically ambiguous, it can serve as a bridge connecting these applications. In going back and forth between Mathematica and LyX, it's convenient that both of them understand LaTeX. This is the reason why I do the bulk of my writing in LyX – it is not only a LaTeX frontend, but it moreover leaves you immense freedom to customize and export the document. because important editor functions (such citation management, and publication-ready PDF output) are missing. However, for larger documents, I find that impractical. ![]() Some people prefer to do all their writing in Mathematica. Here is some information on how to convert formulas from Mathematica to LaTeX and vice versa (see also this post).įor my writing I always use LyX, a LaTeX editor and front end that can format equations while you type them. Editing, copying and pasting Mathematica equations via LaTeX ![]()
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