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Why are logarithms and exponential functions inverses?
Logarithms and exponential functions are inverses because they effectively "undo" each other. An exponential function, such as (y = b^x), transforms an input (x) into an output (y), while the logarithm, (x = \log_b(y)), takes that output (y) and returns the original input (x). This relationship can be expressed mathematically: if (y = b^x), then (x = \log_b(y)), confirming that one function reverses the effect of the other. Thus, they are defined as inverse operations in mathematics.
What is the difference between a function and expression?
Functions and Expressions are representations of relationships that exist among entities, however a function always returns a value (or result)
What is the difference between constant functions and identity functions?
A constant function returns the same value for all inputs but that value may differ from the input. Examples: x*c = y (where c is a constant) x+0 = y The identity function returns the same value as the input for all inputs. Examples: x+0 = y x*1 = y
How many different functions are there that are equal to their own inverse?
The inverse of a function is its reflection in the line y=x. so the only function that returns its own inverse is the line y=x or any part of the line y=x
What do you mean by Identity function?
The identity function is a mathematical function that always returns the same value as its input. In formal terms, for any input ( x ), the identity function is defined as ( f(x) = x ). It serves as a fundamental concept in various fields, including algebra and calculus, and is used to illustrate the properties of functions and transformations. Essentially, it acts as a "do nothing" function, leaving its input unchanged.
A logarithmic function takes the exponential function's and returns the exponential function's input?
output
A function takes the exponential function's output and returns the exponential function's input?
A __________ function takes the exponential function's output and returns the exponential function's input.
What is the difference between the PMT and PPMT functions in Excel?
The PPMT function returns the amt. of interest in a specified instalment number whereas the PMT function returns the amt. of interest in every EMI payment.
When a function is overloaded there are multiple definitions of the functions What makes the various definitions of the function different from each other?
Their parameter-lists and returns values.
What is the difference between a function and expression?
Functions and Expressions are representations of relationships that exist among entities, however a function always returns a value (or result)
Function gets returns?
Yes, it does return. There are only few functions that do not return, like exit, exec, longjmp.
What category in Excel returns a true or false value?
Excel has a category called Logical Functions. The IF function is the one of those that most people use and associate with returning True or False values. Other functions also return True or False values. There is a TRUE function and a FALSE function. The OR function and the AND function can be used to return True or False values too. The NOT function can reverse a True or False value, so it also returns True or False.
What is the difference between constant functions and identity functions?
A constant function returns the same value for all inputs but that value may differ from the input. Examples: x*c = y (where c is a constant) x+0 = y The identity function returns the same value as the input for all inputs. Examples: x+0 = y x*1 = y
Which type of procedure returns a value?
A function. However, not all languages differentiate between procedures and functions. In C and C++ for instance, a function that returns void is (technically) a procedure but it is still regarded as being a function even though it does not return a value. Also, in C++, constructors, destructors and type conversion operators don't have a return type of any kind (including void) but are not regarded as being either procedures or functions.
What prototype for menu function takes no arguments but returns a char value?
char SomeFunction();This has nothing to do with menu functions. It is a straight C/C++ answer. Menu functions depend on the platform API, not on C/C++.
What is return in programming?
The return statement is used in functions to return control to the caller. If the function is declared non-void, the return statement also allows the programmer to return a value to the caller.
In C plus plus How does a function pass control back to the calling function?
The calling code pushes the return address onto the call stack. When the function returns, it pops the return address off the call stack and returns control to that address. The call stack (or simply the stack), is also used to pass parameters to functions and to receive return values from functions, as well as for local storage, evaluation, and the this pointer when calling class member functions. Functions that call other functions, or that recursively call themselves, will increase consumption of the call stack accordingly. This is known as winding, because the return addresses will remain on the stack until the function is ready to return (even if the function calls itself or another function), thus allowing functions to automatically unwind. In other words, it's a bit like leaving a trail of breadcrumbs (as per the Hansel & Gretel fairytale) allowing functions to retrace their steps back to the original call site and, ultimately, back to the main function.
