Top "Boolean-operations" questions

Boolean algebra is the algebra of truth values 0 and 1. The operations are usually taken to be conjunction ∧, disjunction ∨, and negation ¬, with constants 0 and 1.

Boolean operators && and ||

According to the R language definition, the difference between & and && (correspondingly | and ||) is that the former is …

r logical-operators boolean-operations or-operator and-operator
Using NOT operator in IF conditions

Is it really a good practice to avoid using NOT operator in IF conditions in order to make your code …

java if-statement boolean-operations
OR, AND Operator

Newbie question. How to calculate the value of the formula A f B, where f - the binary function OR …

c# boolean-operations
Element-wise logical OR in Pandas

I would like the element-wise logical OR operator. I know "or" itself is not what I am looking for. I …

python pandas boolean-logic logical-operators boolean-operations
What's the difference between the dual and the complement of a boolean expression?

Its the same thing right? Or is there a slight difference? I just wanna make sure I'm not misunderstanding anything.

boolean boolean-logic boolean-expression boolean-operations
How to perform element wise boolean operations on numpy arrays

For example I would like to create a mask that masks elements with value between 40 and 60: foo = np.asanyarray(range(100)) …

python numpy boolean-operations
Boolean 'NOT' in T-SQL not working on 'bit' datatype?

Trying to perform a single boolean NOT operation, it appears that under MS SQL Server 2005, the following block does not …

sql sql-server tsql boolean-operations
Conditional XOR?

How come C# doesn't have a conditional XOR operator? Example: true xor false = true true xor true = false false xor …

c# operators xor boolean-operations
Using "and" and "or" operator with Python strings

I don't understand the meaning of the line: parameter and (" " + parameter) or "" where parameter is string Why would one want …

python string boolean-operations