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matlabfunctiondsolve

Graph of dsolve

How to plot the following function? I need x range of [0; 1].

syms y(x)
y(x) = dsolve(diff(y,x) == tan(x), y(0) == 1);
plot(y, [0 1]);
Solution

  • The error message that you get is:

    Error using plot
    Non-numeric data is not supported in 'Line'

    This exactly tells what the problem is. y is not numeric data here. Rather it is a symbolic function. You need to evaluate y at the required points and then plot it.

    Fixed Code:

    syms y(x)
y(x) = dsolve(diff(y,x) == tan(x), y(0) == 1);
x=0:0.01:1;
plot(x,y(x));

    Output:

    output