How i merge these two equations ?

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Ian Samuelsson
Ian Samuelsson 2019-6-12
评论： Walter Roberson 2019-6-12
clearvars;
% X=xv = Aceleração
% Y=yv = Massa
%Z = força
xv = linspace(0, 2 );
yv = linspace(0,2 );
[X, Y] = ndgrid(xv, yv );
Z = X.*Y;
surf(X, Y, Z, 'edgecolor', 'none ');
xlabel('Massa');
ylabel('Aceleração');
zlabel('z');
xv2 = linspace(0, 3 );
yv2 = linspace(0,3 );
[X, Y] = ndgrid(xv2, yv2 );
Z = sqrt(2*X*Y);
surf(X, Y, Z, 'edgecolor', 'none ');
xlabel('Gravidade');
ylabel('Raio');
zlabel('z');
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Rik
Rik 2019-6-12
You have two equations:
Z=X.*Y;
Z=sqrt(2*X*Y);%note: this is not element-wise!
How would you propose to make it one equation? They are only the same when they are 0. Do you want to have one function apply to one range of x and y and the other to the rest? If so, what are the edges?
Walter Roberson
Walter Roberson 2019-6-12
perhaps you just need to add
hold on
after the first surf() ?

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