# class2 - PHYS 5900 Class 2 (8/26/2011) Zi-Wei Lin Checking...

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PHYS 5900 Class 2 (8/26/2011) Zi-Wei Lin ü Checking memory usage (in bytes): In[1]:= MemoryInUse[ ] Out[1]= 19 244 552 In[2]:= MaxMemoryUsed[ ] Out[2]= 19 283 888 1.3 Getting help: In[3]:= ?Pi Pi is p , with numerical value > 3.14159. à In[4]:= ?DSolve DSolve @ eqn , y , x D solves a differential equation for the function y , with independent variable x . DSolve @8 eqn 1 , eqn 2 , < , 8 y 1 , y 2 , < , x D solves a list of differential equations. DSolve @ eqn , y , 8 x 1 , x 2 , <D solves a partial differential equation. à In[5]:= ?? DSolve DSolve @ eqn , y , x D solves a differential equation for the function y , with independent variable x . DSolve @8 eqn 1 , eqn 2 , < , 8 y 1 , y 2 , < , x D solves a list of differential equations. DSolve @ eqn , y , 8 x 1 , x 2 , <D solves a partial differential equation. à Attributes @ DSolve D = 8 Protected < Options @ DSolve D = 8 GeneratedParameters Ø C, Method Ø Automatic < In[6]:= ?ND* NDSolve @ eqns , y , 8 x , x min , x max <D finds a numerical solution to the ordinary differential equations eqns for the function y with the independent variable x in the range x min to x max . NDSolve @ eqns , y , 8 x , x min , x max < , 8 t , t min , t max <D finds a numerical solution to the partial differential equations eqns . NDSolve @ eqns , 8 y 1 , y 2 , < , 8 x , x min , x max <D finds numerical solutions for the functions y i . à In[7]:= ?*Plot*

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System` ArrayPlot ListPolarPlot PlotRange BodePlot ListStreamDensityPlot PlotRangeClipping ContourPlot ListStreamPlot PlotRangePadding ContourPlot3D ListSurfacePlot3D PlotRegion DateListLogPlot ListVectorDensityPlot
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## This note was uploaded on 01/21/2012 for the course PHYS 6720 taught by Professor Hu during the Spring '10 term at East Carolina University .

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class2 - PHYS 5900 Class 2 (8/26/2011) Zi-Wei Lin Checking...

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