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Time complexity of Sieve of Eratosthenes algorithm

... Your n/2 + n/3 + n/5 + … n/97 is not O(n), because the number of terms is not constant. [Edit after your edit: O(n2) is too loose an upper bound.] A loose upper-bound is n(1+1/2+1/3+1/4+1/5+1/6+…1/n) (sum of reciprocals of all numbers up to...
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Sass calculate percent minus px

...ad. Check browser compatibility on Can I use... .foo { height: calc(25% - 5px); } If your values are in variables, you may need to use interpolation turn them into strings (otherwise Sass just tries to perform arithmetic): $a: 25%; $b: 5px; .foo { width: calc(#{$a} - #{$b}); } ...
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How to get the index of a maximum element in a numpy array along one axis

... eumiroeumiro 165k2626 gold badges267267 silver badges248248 bronze badges ...
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jQuery find element by data attribute value

... – Tushar Gupta - curioustushar Feb 13 '14 at 14:45 1 Wow! this solution is great! Had a problem for hours but ...
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Express command not found

...or reasoned mentioned and will still work. stackoverflow.com/questions/4938592/… – StanleyZheng May 4 '14 at 1:23 4 ...
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Pandas percentage of total with groupby

... sales state office_id AZ 2 16.981365 4 19.250033 6 63.768601 CA 1 19.331879 3 33.858747 5 46.809373 CO 1 36.851857 3 19.874290 5 43.273852 WA 2...
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Convert floats to ints in Pandas?

... To modify the float output do this: df= pd.DataFrame(range(5), columns=['a']) df.a = df.a.astype(float) df Out[33]: a 0 0.0000000 1 1.0000000 2 2.0000000 3 3.0000000 4 4.0000000 pd.options.display.float_format = '{:,.0f}'.format df Out[35]: a 0 0 1 1 2 2 3 3 4 ...
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Ruby max integer

... Pretty sure you want 2**(machine_size * 8) -1; 2**4-1=15 which is not a very large anything. – Cebjyre Feb 11 '09 at 8:11 ...
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Anonymous recursive PHP functions

... 365 In order for it to work, you need to pass $factorial as a reference $factorial = function( $n )...
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What's the meaning of * (asterisk) in XAML ColumnDefinition?

... available space. In your specific case where the width of the grid is 354 and the proportions of the two columns are 40 and 314 you get the following column widths: First column width = 40/(40 + 314)*354 = 40 Second coulmn width = 314/(40 + 314)*354 = 314 The star width is best used when the...