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What is a variable in QBASIC?
Variables in Qbasic are divided into two groups. There are numerical variables and string variables. This is how you would use a numerical variable: CLS INPUT "Enter your first number"; num1 INPUT "Enter your second number"; num2 num3 = num1 * num2 CLS PRINT "The product of the two numbers is"; num3 END This example just has the user input 2 variables (num1 and num2) and store them as numerical variables. Num3 is defined by multiplying the two user-imputed variables. The text displayed with PRINT contains normal text with a semi colon to display the result. This is a string variable example: CLS INPUT "What is my name?"; name$ PRINT "Hi I'm"; name$ END Instead of inputting just the variable name, you add a dollar sign to signify that it's a string variable. String variables contain letters rather than numbers. For string variables, you simply put the $ after the variable name every time it's used. Other than that, it's much like a numerical variable. That's a basic outline of how the variables work. Manipulating the string variables is a different story.
What is STD logic in vhdl?
In VHDL, std_logic is a data type. It is assigned to input and / or output variables. It means that the variable is a standard logic type i. e. a logic bit which accepts or provides one bit data, either 1 or 0.
What is the difference between Supervised and unsupervised methods in data mining?
Unsupervised Learning• The model is not provided with the correct resultsduring the training.• Can be used to cluster the input data in classes onthe basis of their statistical properties only.• Cluster significance and labeling.• The labeling can be carried out even if the labels areonly available for a small number of objectsrepresentative of the desired classes.Supervised Learning• Training data includes both the input and thedesired results.• For some examples the correct results (targets) areknown and are given in input to the model duringthe learning process.• The construction of a proper training, validation andtest set (Bok) is crucial.• These methods are usually fast and accurate.• Have to be able to generalize: give the correctresults when new data are given in input withoutknowing a priori the target.
What are two kinds of data tables that can be created?
one- input tables and three input tables
What is the relationship between two variables?
The relationship between two variables is called a relation. A relation in which a set of input values maps onto a set of output values such that each input corresponds to at most one output is called a "function." Functions do not necessarily have to be lines; they do not even have to be exponential, or parabolic, or continuous. A bunch of scattered points or lines that meets the requirements can still be considered a function involving two variables.
