[Scilab-users] numderivative Heart function

[Rafael Guerra]

Hi Hermes,



Very confusing problem formulation...

To find solutions of Hxy(x,y) with fsolve along the x=0 slice, it might be easier to use a sliced function H0y as input:



clear all;



function val=Hxy(x, y)

    val=(1.25*y-sqrt(abs(x))).^2+x.^2-1;

endfunction;



function z=H0y(y)   // slice of Hxy along x=0

    x=0;

    z= Hxy(x, y);

endfunction;



y1=fsolve(1,H0y);

disp(y1)

y2=fsolve(-1,H0y);

disp(y2)



    0.8



  - 0.8



Regards,

Rafael
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