Category: Functions

argminxf(x) is the value of x for which f(x) attains it’s minimum. argmaxxf(x) is the value of x for which f(x) attains it’s maximum. In Python ARGMIN AND ARGMAX returns Indices of the minimum...

random.choice(seq) This return a random element from the non-empty sequence seq. If seq is empty, raises IndexError. Example

Returns the indices that would sort an array. Perform an indirect sort along the given axis using the algorithm specified by the kind keyword. It returns an array of indices of the same shape...

Construct an array by repeating A the number of times given by reps. Syntax Example

The method strftime() converts a tuple or struct_time representing a time as returned by gmtime() or localtime() to a string as specified by the format argument. If t is not provided, the current time...

Casting is when you convert a variable value from one type to another. This is, in Python, done with functions such as int() or float() or str(). The various casting methods that are in...

The scope of an identifier is defined to be the portion of the program where its declaration applies, or what we refer to as “variable visibility.” In other words, it is like asking yourself...

Python allows one to create anonymous functions using the lambda keyword. They are “anonymous” because they are not declared in the standard manner, i.e., using the def statement. (Unless assigned to a local variable,...

Default arguments are parameters which are defined to have a default value if one is not provided in the function call for that argument. Such definitions are given in the function declaration header line....

The concept of function pointers is an advanced topic when learning a language such as C, but not Python where functions are like any other object. They can be referenced (accessed or aliased to...

Like some other high-level languages, Python does not permit you to reference or call a function before it has been declared. We can try a few examples to illustrate this: If we were to...

def Statement Functions are created using the def statement, with a syntax like the following: The header line consists of the def keyword, the function name, and a set of arguments (if any). The...

Function Operator Functions are called using the same pair of parentheses that you are used to. In fact, some consider ( ( ) ) to be a two-character operator, the function operator. As you...

Functions may return a value back to its caller and those which are more procedural in nature do not explicitly return anything at all. Languages which treat procedures as functions usually have a special...

Functions are the structured or procedural programming way of organizing the logic in your programs. Large blocks of code can be neatly segregated into manageable chunks, and space is saved by putting oft-repeated code...