[Scilab-users] numderivative Heart function

[Hermes]

Hola,
I would like to find the values of the function for which its derivative is
equal to zero.

function val = Heart(x1, x2) 
    val=(1.25*x2-sqrt(abs(x1))).^2+x1.^2-1; 
endfunction;

I've tried it with the numderivative function.
Gracias



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