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Next let us learn about the power function. Power is
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Nothing but
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It just gives you m to the power n
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So 2 raised to the power 3 is 2 cube which is 8
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6 raise to the power 2 is 6 square which is 36
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So
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If you want to find out any power of any number
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This is the power function you write power
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And give it two inputs
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m and n
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It will raise m to the nth power
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If you want to find out
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6 square this is what we will write select power 6, 2
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You want to find square of all the ages for some reason you can write
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Age, power age comma 2. So where this can help you is
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If you are into statistics and you want to find out standard deviation or variance
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That is where
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Squares and other
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Similar types of calculations can be used
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So this is how we use
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Power
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Let's go and write this
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Select
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Power age
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Comma 2
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Comma age From
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Customer
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Let us run this
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You can see
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we have age of 67. 67 square is
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4489
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31 square is 961
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65 square is 4225
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Those are all the functions that we will be covering
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Apart from this there are some other mathematical functions also
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Which are very specific
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If someday you need to use some other function just go to Google you can find those or you can find
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These functions in the
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Postgres documentation also and we will be sharing the link of that documentation page
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That webpage
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Along with this lecture
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That is all for mathematical functions
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In the next section we will look at some other type of function
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