boolean-logic

Its the same thing right? Or is there a slight difference? I just wanna make sure I'm not misunderstanding anything. J.C.Morris Boolean duals are generated by simply replacing ANDs with ORs and ORs with ANDs. The complements themselves are unaffected, where as the complement of an expression is the negation of the variables WITH the replacement of ANDs with ORs and vice versa. Consider: A+B Complement: A'B' Dual: AB "The Dual of an identity is also an identity. This is called the Duality Principle". A Boolean Identity is X+0=X or X+X=X. There's lots of them. Duals only work with identities. To

I have a method which is connecting to a database via Odbc. The stored procedure which I'm calling has a return value which from the database side is a 'Char'. Right now I'm grabbing that return value as a string and using it in a simple if statement. I really don't like the idea of comparing a string like this when only two values can come back from the database, 0 and 1. OdbcCommand fetchCommand = new OdbcCommand(storedProc, conn); fetchCommand.CommandType = CommandType.StoredProcedure; fetchCommand.Parameters.AddWithValue("@column ", myCustomParameter); fetchCommand.Parameters.Add("

Preface: I don't have experience with rules engines, building rules, modeling rules, implementing data structures for rules, or whatnot. Therefore, I don't know what I'm doing or if what I attempted below is way off base. I'm trying to figure out how to store and process the following hypothetical scenario. To simplify my problem, say that I have a type of game where a user purchases an object, where there could be 1000's of possible objects, and the objects must be purchased in a specified sequence and only in certain groups. For example, say I'm the user and I want to purchase object F.

I can't seem to find a pointer in the right direction, I am not even sure what the terms are that I should be researching but countless hours of googling seem to be spinning me in circles, so hopefully the collective hive of intelligence of Stack Overflow can help. The problem is this, I need a way to filter data in what I can only call a compound logic tree. Currently the system implements a simple AND filtering system. For example, lets say we have a dataset of people. You add a bunch of filters such that show all the people where (Sex = Female) AND (Age > 23) AND (Age < 30) AND ( Status =

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

what I am trying to do is an example below. let's first define a bool. bool cat = {false}; lets make a fake bool here. bool setcat(bool booltoset) { booltoset = true; return booltoset; } now lets call it with cat. printf("cat is %s", cat?"true":"false"); //set cat as false. my question is; is it possible to actually pass a bool through an argument than set that bool? You need to pass by reference, i.e.: void setcat(bool& booltoset) { booltoset = true; } Any function argument is just a variable with scope identical to the function body. If it's an ordinary automatic variable, then changing it

I have to create a menu wherein if the input is not valid. It should keep asking for a valid input. I've written it below (in C) #include <stdio.h> int main() { int input = 0; printf("What would you like to do? \n 1 (Subtraction) \n 2 (Comparison) \n 3 (Odd/Even) \n 4 (Exit) \n "); scanf_s("%d", &input); while (input != 1 || input != 2 || input != 3|| input != 4) { printf("Please enter a valid option \n"); scanf_s("%d", &input); } // At this point, I think it should keep testing variable input and if it's not either 1 or 2 or 3 or 4. It would keep looping. But what's happening is it loops even

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[]