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Tips and tricks: Difference between revisions
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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. | ||
==Vectorizing Tricks | ==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]; | ||
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 | ||
x = sin(2*pi*[1:n]*f/r); | x = sin(2*pi*[1:n]*f/r); | ||