How does colon operator work

2015 2 23
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I am new to matlab. Anyone know how does the colon operator works in the 2 equations?
a= [ 0.003:1/1024:0.5 ]
b= [ 1/512:1/512:i ]

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Star Strider
Star Strider 2015-2-23
编辑：Star Strider 2015-2-23

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The colon operator creates vectors. In your illustration, it creates ‘a’ starting at 0.003, incrementing by 1/1024, and ending at 0.5. The ‘b’ vector starts at 1/512, increments by 1/512, and ends at whatever variable ‘i’ is. (Note: using ‘i’ or ‘j’ as variables, including as loop counters, is not good programming practice. MATLAB uses them for its imaginary operators, and using them otherwise causes confusion.)

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