I have another problem for
plotting anything, the Output of plotting is "-Graphics-" or for 3d plotting is "-Graphics3D-" insted of plot curve or function or data or ... .
for example:
In[1]:= Plot[Sin[x], {x, 0, 6 Pi}]
Out[1]= -Graphics-
In[2]:= Plot3D[Sin[x + y^2], {x, -3, 3}, {y, -2, 2}]
Out[2]= -Graphics3D-
Do i need activate package or not? What do i do?
Best,
Vahid
