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6 bytes removed ,  01:16, 27 November 2011
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These same tricks are useful for reading and writing data files with unique names, etc.
 
These same tricks are useful for reading and writing data files with unique names, etc.
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==Vectorizing Tricks===
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==Vectorizing Tricks==
    
You can easily fill a vector with an index:
 
You can easily fill a vector with an index:
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     x = [1:n];
 
     x = [1:n];
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This works for expressions on the index by wrapping the index in an expression:
 
This works for expressions on the index by wrapping the index in an expression:
 
     for i=1:n, x(i) = sin(2*pi*i*f/r); end
 
     for i=1:n, x(i) = sin(2*pi*i*f/r); end
   
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     x = sin(2*pi*[1:n]*f/r);
 
     x = sin(2*pi*[1:n]*f/r);
  

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