New in Wolfram Mathematica 7: New Number Theory Capabilities  previous | next 
Visualize Prime Related Functions
In[1]:=

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GraphicsGrid@

 Partition[

  Table[DiscretePlot[f[k], {k, 50}, 

    PlotLabel -> f[k]], {f, {PrimeOmega, PrimeNu, LiouvilleLambda, 

     MangoldtLambda}}], 2]
Out[1]=