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Two questions

  • To: mathgroup at smc.vnet.net
  • Subject: [mg123906] Two questions
  • From: Miguel <misvrne at gmail.com>
  • Date: Thu, 29 Dec 2011 02:54:52 -0500 (EST)
  • Delivered-to: l-mathgroup@mail-archive0.wolfram.com
  • Reply-to: comp.soft-sys.math.mathematica at googlegroups.com

1.- Plot question

Let the differential equation:

In[]: Y[x_]=y[x]/.First[DSolve[y[x]-1/2 x y'[x]==0,y[x],x]]
Out[]: Subscript[c, 1] x^2

In[]: Plot[Y[x]/.C[1]->20,{x,-2,2}]
And yields a correct graphic.

But

In[]: Yort[x_]=y[x]/.First[DSolve[y[x]-1/2 x (-1/y'[x])==0,y[x],x]]
Out[]: -(Sqrt[4 Subscript[c, 1]- x^2]/Sqrt[2])

And yields nothing.


2.- Menu options question
The menu options of Edit\CopyAs are PlainText, InputText, ... Bitmap, Metafile
But, the menu options of secundary bottom mouse of CopyAs are PlainText, Cell Expression, Notebook Expression . 
I think that is very useful al options on the secundary mouse.




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