add a number of nodes N between two known nodes

How can I add a number of nodes N between two known nodes present in 'NODES'?

NODES = [-41.9153 -20.1597 65.3012;
         -33.2487 -10.7068 7.4146];
figure 
plot3(NODES(:,1),NODES(:,2),NODES(:,3),'k.','Markersize',30);
axis equal

Answer 1

[Voss]

NODES = [-41.9153 -20.1597 65.3012;
         -33.2487 -10.7068 7.4146];

N = 5;
t = linspace(0,1,N+2);
t([1 end]) = [];
NODES_new = interp1([0 1],NODES,t);

figure 
plot3(NODES(:,1),NODES(:,2),NODES(:,3),'k.','Markersize',30);
hold on
plot3(NODES_new(:,1),NODES_new(:,2),NODES_new(:,3),'r.','Markersize',30);
axis equal