Plotting with dsolve for ODE

2022 1 20
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I have created a slope field, now I wish to overlay a single curve for the function that satisfies the equation. below is code so far.
clear
clc
[x,y] = meshgrid(-5:0.4:5,-5:0.4:5);
dydx = x.^2+y.^2-1;
L = sqrt(1+dydx.^2);
quiver(x,y,1./L,dydx./L,'k')
hold on
axis([-3 3 -3 3])
I have attempted to continue like this Unsucccessfuly:
syms y(x)
func = dsolve(diff(y,1) == x^2+y^2-1,y(0) == 0)
fplot(func,[-3 3])
Thank you for your assistance.

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