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class29 - PHYS 5900 Class 29 Zi-Wei Lin Two-Dimensional...

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Unformatted text preview: PHYS 5900 Class 29 (11/11/2009) Zi-Wei Lin Two-Dimensional Graphics Directives include GrayLevel[ ], RGBColor[ ], Hue[ ], Opacity[ ], PointSize[ ], AbsolutePointSize[ ], Thickness[ ], AbsoluteThickness[ ], Dashing[ ], AbsoluteDashing[ ], Arrowheads[ ], EdgeForm[ ], FaceForm[ ], Directive[ ]. The absolute scale is measured in units of printer’s points, equal to 1/72 of an inch before magnification. Some of the above commands with a size argument take symbolic values: Tiny, Small, Medium, Large. Example 3.5.2 Show the trajectory of a projectile that is aimed at a target that falls from rest at the moment when the projectile is fired. v Θ Point of collision In[1]:= gpTraj = Plot @H 10 15 L * x- H 7 225 L * x ^ 2, 8 x, 0, 15 <D Out[1]= 2 4 6 8 10 12 14 0.5 1.0 1.5 2.0 2.5 3.0 3.5 In[2]:= Show @ gpTraj, Axes fi False D Out[2]= In[3]:= gLine = 8 Line @88 0, < , 8 5, <<D , 8 Dashing @8 0.04, 0.02 <D , Line @88 0, < , 8 15, 10 <<D , Line @88 15, 10 < , 8 15, 3 <<D< < ; 2 class29.nb In[4]:= Show @ gpTraj, Graphics @ gLine D , Axes fi False, PlotRange fi All D Out[4]= In[5]:= gArrow = 8 8 Arrowheads @ Large D , Thick, Arrow @88 0, < , 8 5, 5 * 10 15 <<D , Arrow @88 15, 10 < , 8 15, 7 <<D< , Arrow @88 12., 3.5 < , 8 12.2295, 3.5 <<D , Arrow @88 12, 1 < , 8 14, 2 <<D < ; In[6]:= Solve @H 10 15 L * x- H 7 225 L * x ^ 2 3.5 D Out[6]= 88 x fi 9.19906 < , 8 x fi 12.2295 << In[7]:= Show @ gpTraj, Graphics @8 gLine, gArrow <D , Axes fi False, PlotRange fi All D Out[7]=...
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class29 - PHYS 5900 Class 29 Zi-Wei Lin Two-Dimensional...

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