Suppose I have any variable, which is defined as follows: var a = function() {/* Statements */}; I want a function which checks if the type of the variable is function-like. i.e. : function foo(v...

How do you tell if a function in JavaScript is defined? I want to do something like this

Aug 7, 2020 · By definition, an exponential function is where the independent variable (the x-value) is the exponent. While you're not wrong in this respect, this only really holds if the function is in its …

43 I am looking for the "best" way to determine whether a function is one-to-one, either algebraically or with calculus. I know a common, yet arguably unreliable method for determining this answer would …

Feb 17, 2016 · 1 For a relation to be a function, it must be one-to-one or injective, meaning that it must map each input into a different output. If you can't use the vertical line test, see if you can determine …

Nov 14, 2013 · A function can be $1-1$ and onto (or it can be one, but not the other, or it can be neither). I'll edit in a discussion of whether the function in 1) in onto.

I have a variable, x, and I want to know whether it is pointing to a function or not. I had hoped I could do something like: >>> isinstance (x, function) But that gives me: Traceback (most

Jan 2, 2015 · For example f may be from A -> B and g is from C -> D and if the Range of g is not a subset of Domain of f the composition won't be a function. So essentially we have to prove that yes …

Nov 24, 2017 · According to that definition, there is a distinction between a polynomial and a function that it represents, and whether something is a polynomial can be determined according to its form, …

Apr 30, 2014 · 1 You know that a linear function satisfies the following property: $$f (a+b)=f (a)+f (b)$$ and you want to determine whether a particular function $g$ is linear, so you just check whether this …