If I have a grid say consisting of 15 x 15 cells (b开发者_StackOverflowut variable), what formulae or algorithmwould I use to randomly select 20 cells clustered around the centre cell?
When writing an Excel formula, does it make a difference whether you set a value to true, \"true\", or true()?
Not sur开发者_StackOverflow社区e of the best way to ask this question other than: I\'m writing a function that will accept a variable called \'x\'.
I wonder if the above can operate the column like the excel. eg. s开发者_运维百科ame row. column 1 : A, column 2 : b, column 3 : A + b.It doesn\'t look like MySQL supports computed columns as per SQ
What I mean by bandwagon effect describes itself like so: Already top-ranked items have a higher tendency to get voted on at all, possibly even to get upvoted.
I am trying to write a prime number function in C# and I am wondering if the follow code will work. It \"appears\" to work with the first 50 numbers or so. I just want to make sure it will work no mat
I\'m creating dummy data for an app, and want to simulate exponential growth while also knowing the final number.So here\'s the proposal:
Ok, I have a projectile that has its position defined such that: a.x = initialX + initialDX * time; a.y = initialY + initialDY * time + 0.5 * gravtiy * time^2;
I need to implement a simple formula parser. What I am doing is first create a postfix notation and then evaluating the postfix str开发者_如何学编程ing. Unfortunately, this algorithm doesn\'t allow br
I have been reading the code used by R to fit a generalized linear model (GLM), since the source-code of R is freely available. The algorithm used is called iteratively reweighted least squares (IRLS)
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