Tcl Nested Loops - Learn Tcl/Tk in simple and easy steps starting from basic to. The following program uses a nested for loop to find the prime numbers from 2. Above and beyond group therapy mp3 download free. The maximum file size is 500 MB. 2) Click the 'Start Upload' button to start uploading the file. You will see the progress of the file transfer. Finding prime numbers is something that is pretty well explained out there, so I'll explain a bit more about how you should be thinking in order to work out the solution. Like that, I hope you'll be better able to answer such problems yourself in the future. To start with, you've got two problems here. One problem is how to discover if a particular number is a prime number, and another problem is how to find all the prime numbers in a given range. These two are indeed linked: we can use the solution to one to solve the other. Let's start by doing that. (This is pseudocode, not Tcl!) # Start at 2; 1 is defined to be a non-prime for every i in 2 up to 100 if (isPrime i) print i, ' is prime' else print i, ' is not prime' end if end for Next, we need a mechanism for that isPrime. It's something that's best written as a named subprogram (a procedure in Tcl). We'll use the simplest technique here, a primality test by simple-minded trial division. Function isPrime (integer x): boolean # Note, when x is 2, this loop does *zero* steps for every i in 2 up to x-1 if (x mod i = 0) # Early exit from function; we know the answer to do more work! Return false end if end for return true end function That's not efficient (you can stop earlier, you can keep a cache of what smaller primes have already been found and only check against those, etc.) but it will work. Now all you need to do is convert the above to Tcl. There's a pretty straight-forward one-to-one conversion strategy. But the important part is to break the overall challenge down into simpler pieces that you can solve in a way that is so simple you can't get it wrong. Side note: you should also brace your expressions in Tcl! Not doing so is occasionally useful in advanced programming, but it's almost always just a bug waiting to happen. In order to provide the best platform for continued innovation, Jive no longer supports Internet Explorer 7. Solidworks free download for macbook pro. Attention, Internet Explorer User Announcement: Jive has discontinued support for Internet Explorer 7 and below. It has the benefit of allowing the built-in compiler to turn the expression into fast code.
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