Generates a list representing the evolution of the substitution system with the specified rule from initial condition init for t steps.

Replace replaces a whole expression by default: Copy to clipboard. ... It also allows specific levels to be replaced: Copy to clipboard. ... ReplaceAll replaces any ... ReplaceAll · StringReplace · SequenceReplace

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Substitution systems, or L-systems, are a type of simple computational system, or automaton, capable of simple and complex behavior, even chaos, depending on ...

1 нояб. 2014 г. · The following all work: ReplaceAll[Diff[Sin[x], x] , {x -> 0}]. D[Sin[x], x] /. {x -> 0}. Diff[Sin[x], x] where x = 0. Sin'(0).

SubstitutionSystem generates a list representing the evolution of a given initial state following the iterative applications of a set of rules. Consider the ...

7 февр. 2022 г. · Try y==a+b/.{a->2d+e,b->f+g} and see if that is what you are looking for. That takes the expression y==a+b and does the list of substitutions to it.

String substitution systems have arisen in many different settings under many different names [1:p893], but in all cases they involve strings whose elements are ...

1 авг. 2010 г. · Use widget to determine value of y or x in an equation by solving or evaluating as needed. Send feedback|Visit Wolfram|Alpha

Evaluate can be used to resolve a variable to its value in a held argument, but only when it occurs at the top level of the argument.