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In computer science, a lookup table (LUT) is an array that replaces runtime computation with a simpler array indexing operation, in a process termed as direct addressing.The savings in processing time can be significant, because retrieving a value from memory is often faster than carrying out an "expensive" computation or input/output operation. [1]
The return value from a function is provided within the function by making an assignment to an identifier with the same name as the function. [5] However, some versions of Pascal provide a special function Exit(exp); that can be used to return a value immediately from a function, or, without parameters, to return immediately from a procedure. [6]
These values from a restricted domain are called principal values. The antiderivative can be considered as a multivalued function. The antiderivative of a function is the set of functions whose derivative is that function. The constant of integration follows from the fact that the derivative of a constant function is 0.
Parts of the United States are seeing snow for the first time this winter. Here's at some photos of the areas impacted.
The temperature's getting colder, but the playoff race is heating up. That's doubly true when the Detroit Lions meet the Green Bay Packers on "Thursday Night Football" in Week 14.. In the midst of ...
Various techniques for returning multiple values include: Returning a tuple of values. This is conventional in languages (such as Python) that have a built-in tuple data type and special syntax for handling these: in Python, x, y = f() calls the function f returning a pair of values and assigns the elements of the pair to two variables ...
Best Food Gifts for Christmas Kelly Fields’ Southern Brunch Box. Start Christmas morning on the right foot with a brunch courtesy of Kelly Fields, one of the South’s most acclaimed chefs.
A lookup table, which contains, as keys, the case values and, as values, the part under the case statement. (In some languages, only actual data types are allowed as values in the lookup table. In other languages, it is also possible to assign functions as lookup table values, gaining the same flexibility as a real switch statement.