Inverse Functions vs Inverse Relations - Physics Forums
Jun 23, 2018 · The discussion centers on the distinction between inverse functions and inverse relations, specifically addressing the conditions under which an inverse relation becomes a function. …
Function vs mapping vs transformation - Physics Forums
Jul 21, 2007 · During learning linear algebra, I have met at least three items (kind of action in my own word): function, mapping and transformation. What are the relation and difference among them? e.g. …
What is the difference between functions and operations?
Jan 25, 2013 · The discussion clarifies the distinctions between functions, operations, and operators in mathematics and programming. Functions are defined as mappings from one set to another, while …
Electron affinity, work function, band gap • Physics Forums
Aug 25, 2015 · The discussion clarifies the relationships between electron affinity, work function, and band gap in semiconductors. The work function is defined as the energy required to move an …
Power Formula: Frequency & Electrical Power Explained - Physics Forums
Mar 6, 2015 · The discussion centers on the relationship between electrical power, frequency, and RMS values. It is established that electrical power is calculated using the formula P = V * I * cos (Q), where …
Relation vs Function: Understanding N-ary Relations
Jan 20, 2017 · An n-ary relation can be informally defined as a function that assigns a truth value to an n-tuple from arbitrary sets, which aligns with the notion of a well-defined set. While the professor's …
Binding energy and work function of a solid? - Physics Forums
Oct 30, 2006 · The work function also accounts for the image potential that can attract the electron back to the material. Typical values for binding energy are generally orders of magnitude larger than work …
Is there a difference between one to one and well defined?
Jan 28, 2018 · A function is one-to-one if no two distinct elements in the domain map to the same element in the codomain, while a well-defined function ensures that each input corresponds to …
Relating propeller thrust, power, and rpm together - Physics Forums
Jul 26, 2017 · This discussion focuses on optimizing electric aircraft performance by relating propeller thrust, power, and RPM using blade element theory and actuator disk theory. The key formula for …
What is the relationship between Flow Rate and Pressure
Jun 20, 2012 · The relationship between flow rate and pressure in a pipe system is primarily governed by the Darcy-Weisbach equation and the Hagen-Poiseuille relation. The Darcy-Weisbach equation …