What Exactly is Dirac's Delta Function? - Physics Forums
Aug 29, 2025 · Dirac’s delta function is considered (notation for) a distribution. Specifically it is (and its derivatives are) expressed in terms of the Radon-Nikodym derivative (s) of the …
Does f(x,y) = dy/dx or f'(x) in Mathematical Function Notation?
Feb 1, 2017 · I have a question about math function notation. f (x) = a function of x f (x,y) = dy/dx
Bracket VS wavefunction notation in QM • Physics Forums
Jun 22, 2017 · In some sources QM is explained using bracket notation. I quite understand algebra of bracket notation, but I do not understand how is this notation related with physically …
Notation question about min and max functions - Physics Forums
Dec 28, 2011 · I have a general question about the notation of min and max functions. I'm wondering if there is an accepted notation, used by mathematicians, for the min...
Question about Notation of Function • Physics Forums
Nov 28, 2020 · The notation f (x) = y indicates that f is a function of the variable x, where f (x) represents the output corresponding to the input x. The parentheses are used for clarity, …
How do I stretch the graph of y=x^3 horizontally by a factor of 3?
Sep 17, 2007 · The domain of the function 5x/ (8x^2+9) is confirmed to be all real numbers, represented in interval notation as (-∞, ∞). The discussion also touches on the relationship …
What does 2f(x) mean, in words? • Physics Forums
Aug 8, 2015 · I am confused about how to enter 2 multiplied by the function in a ti-84 calc. I am wondering if its because I am mixing up function notation. I am learning about transforming …
Function Notation: Understanding h(t) & t(h) - Physics Forums
Apr 6, 2009 · I have a simple problem here, some confusion on my part. I've just started learning about functions and their inverses. We've used traditional f^(-1) to denote the inverse. But …
Function notation in physics equations
Jan 5, 2015 · Function notation in physics can create confusion, particularly when distinguishing between variable quantities and functions. In the equation x = x₀ + v₀t + (1/2)at², x represents a …
How do I correctly notate the domain and range of a function …
Sep 18, 2007 · Should have asked what? If you know that "domain" and "range" of a function are sets, then of course they can be written in "set notation"!