separating x and y from an equation

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Areeb Ansari
Areeb Ansari 2015-3-12
回答： Elias Gule 2015-3-13
after applying some mathematics I have an equation as a result in the form 2x - 3y^2. Now what I want to do is separate 2x and store it into one variable and 3y^2 and store it into another variable, is there any command to separate 2x and 3y^2 ?
  1 个评论
Greig
Greig 2015-3-13
Can you gives us some more details about what your data are and what you are doing/trying to achieve. As it stands you have given a very abstract description, which have a very simple solution, or a much more complicated one.

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Elias Gule
Elias Gule 2015-3-13
%%USE regexp to split the string
%
str = regexprep('2x-3y^2','(\d+)(\w+)','$1*$2');
str = regexprep(str,'(\w+)(\^)','$1.$2');
str = regexp(str,'-','split');
% define values for x and y
x = [];
y = [];
% store the values of x in a variable x_ and y in a variable y_
evalin('base',['x_ = ' str{1} ';' 'y_ = ' str{2} ';']); %%x_ and y_ will be created in the base
% workspace

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