HAVE A PROBLEM WITH DSOLVE

Question

eduardo arango 2011-9-3

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https://ww2.mathworks.cn/matlabcentral/answers/15039-have-a-problem-with-dsolve

HI , I AM NEW WITH MATLAB ,, PLEASE HELP ME ,, I TRY SOLVE A DIFFERENTIAL EQUATION BUT I CAN'T ,, LOOK: >> y = dsolve('2*D2y+0.02+Dy+y=2','y(0)=0','Dy(0)=3') ezplot(y,[0,20]) ??? Undefined function or method 'dsolve' for input arguments of type 'char' HOW CAN I SOLVE THIS PROBLEM?? THANK.

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Answer 1

Walter Roberson 2011-9-3

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Are you sure that you have the Symbolic Toolbox? dsolve() is not part of basic MATLAB.

The Symbolic Toolbox is an optional extra-cost add-on to MATLAB, except that it is included in the Student Version (but in the Student Version you still have to be sure to install it.)