boolean-operations

Do they have a reason for doing so? I mean, in the sum of minterms, you look for the terms with the output 1; I don't get why they call it "minterms." Why not maxterms because 1 is well bigger than 0? Is there a reason behind this that I don't know? Or should I just accept it without asking why? Rubenulis The convention for calling these terms "minterms" and "maxterms" does not correspond to 1 being greater than 0. I think the best way to answer is with an example: Say that you have a circuit and it is described by X̄YZ̄ + XȲZ . "This form is composed of two groups of three. Each group of

I am a new programmer, so sorry if this is really basic. I have looked around for this website for an answer, I could find very similar questions, but none was what I needed. import java.util.Scanner; public class sortThreeIntegers { public static void main (String[] args) { Scanner input = new Scanner(System.in); Scanner input2 = new Scanner(System.in); Scanner input3 = new Scanner(System.in); System.out.println("Enter the first number: "); System.out.println("Enter the second number: "); System.out.println("Enter the third number: "); double firstNumber = input.nextDouble(); double

I wrote a function to compare file versions between what a client currently has and the latest version of the file on a server. The client passes the "quad" (Major.Minor.Build.Private) version number as a string to the server, and then the server uses FileVersionInfo: // clientFileVersion will be in "quad" format, a la "3.1.4.1" private bool ServerFileIsNewer(string clientFileVersion, FileVersionInfo serverFile) { // Don't say I never learned nuthin' from Steve McConnell const int MAJOR_INDEX = 0; const int MINOR_INDEX = 1; const int BUILD_INDEX = 2; const int PRIVATE_INDEX = 3; string[]

For each of the following write the equivalent C++ expressions, without any unary negation operators (!). (!= is still permitted) Use DeMorgan's law !( P && Q) = !P || !Q !( P || Q) = !P && !Q For !(x!=5 && x!=7) !(x<5 || x>=7) !( !(a>3 && b>4) && (c != 5)) My answers: (x>5 || x<5) || (x>7 || x<7) x>=5 && x < 7 (a>3 && b > 4) && (c!=5) Are these correct? If not, can you give me answers and explain why they are wrong? I am a beginner in C++ so take it easy. Check this out: !(x!=5 && x!=7) --> x==5 || x==7 !(x<5 || x>=7) --> x>=5 && x<7 !( !(a>3 && b>4) && (c != 5)) --> (a>3 && b>4) || c==5 So,

In pandas, I'd like to create a computed column that's a boolean operation on two other columns. In pandas, it's easy to add together two numerical columns. I'd like to do something similar with logical operator AND . Here's my first try: In [1]: d = pandas.DataFrame([{'foo':True, 'bar':True}, {'foo':True, 'bar':False}, {'foo':False, 'bar':False}]) In [2]: d Out[2]: bar foo 0 True True 1 False True 2 False False In [3]: d.bar and d.foo ## can't ... ValueError: The truth value of a Series is ambiguous. Use a.empty, a.bool(), a.item(), a.any() or a.all(). So I guess logical operators don't work

I'm working on an application, I need to be able to combine two overlapping arbitrary shapes as drawn by the user. This would be a Union operation on the two shapes. The resultant shape would be the silhouette of the two overlapping shapes. The shapes are stored as a sequence of points in a clockwise manner. Ideally I'd like an algorithm which will take two arrays of Points (x,y) and return a single array of the resultant shape. I've been reading Wikipedia on Boolean operations on polygons which mentions the Sweep line algorithm but I can't make the link between this and my goal, alas I'm not

I'm new to C# and could not find XNOR operator to provide this truth table: a b a XNOR b ---------------- T T T T F F F T F F F T Is there a specific operator for this? Or I need to use !(A^B)? XNOR is simply equality on booleans; use A == B . This is an easy thing to miss, since equality isn't commonly applied to booleans. And there are languages where it won't necessarily work. For example, in C, any non-zero scalar value is treated as true, so two "true" values can be unequal. But the question was tagged c# , which has, shall we say, well-behaved booleans. Note also that this doesn't

So there's this page on the php site which shows the result of comparing different values: http://php.net/manual/en/types.comparisons.php This is a helpful reference, but I would rather not have to visit this page every time I want to make sure that I'm doing type comparison right. So my question is Is there some kind of underlying philosophy/reasoning behind the logic of type comparisons on PHP? For example, I can see that for loose comparisons: 1, -1, "1" and "-1" can be treated as TRUE and 0 and "0" can be treated as FALSE; Comparing the string value of a number against the number itself