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Problem 695. Parse string and identify specific string sequence in algebraic equation

Given a string S that defines an algebraic expression such as:

S= 'X= A1 + A2*(Y1 + A3*Y3)*exp( A4*Y12 + Y1) ;'

return a cell array {'Y1', 'Y12', 'Y123'}

i.e. parse the string S and identify the unique variables in the expression that start with the letter "Y".

Solve

Solution Stats

52.42% Correct | 47.58% Incorrect
Last Solution submitted on Oct 29, 2019

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parser regexp string