
Learn How to Solve the Cubic Equation for Dummies
Oct 2, 2016 · Everybody learns the “quadratic formula” for solving equations of the form A x 2 + B x + C = 0, even though you don’t really need such a formula, because you can solve for x …
Find C in general sine function - Physics Forums
Jan 26, 2011 · The discussion focuses on determining the value of 'c' in the sine function represented as y = a sin (b (x - c)) + d. Participants clarify that 'c' represents the horizontal …
The Difference Between Functions And Equations? - Physics Forums
Aug 10, 2009 · A function is a rule. It associates with each possible input a single output. A function's definition often comes in the form of an equation, but it need not. For a polynomial, …
Finding the wavelength from the work function in photoemission
Apr 27, 2012 · The discussion focuses on calculating the maximum wavelength for photoemission from a metal with a work function of 2.30 eV. The relevant formula derived is λ = hc/σ, where λ …
How can I find the equation of the inverse function of a cubic …
Dec 4, 2007 · The discussion centers on finding the equation of the inverse function for the cubic function f (x) = x^3 + 6x^2 + 12x + 7. The user has identified the inflection point at (-2, -1) and …
Determine a transfer function in the `s` domain and the response …
Dec 24, 2018 · The forum discussion focuses on determining the transfer function and response of a first-order system represented by the equation 4 (dy (t)/dt) + y (t) = 3u (t) in the s-domain. …
Solving an equation that contains the floor function
Jan 17, 2021 · The discussion focuses on finding the smallest positive integer x that satisfies the equation involving the floor function: $$\left \lfloor\frac {x} {a} \right\rfloor + \left \lfloor \frac {x} …
Solving the Heart Curve Equation: 'y = • Physics Forums
Dec 2, 2020 · The discussion revolves around the challenge of expressing the heart curve equation 'y =' from a complex polynomial equation involving multiple variables. The …
Cool 3-D functions for graphing - Physics Forums
Oct 26, 2006 · This discussion focuses on the sharing and exploration of 3-D mathematical functions suitable for graphing using a specific graphing tool. Participants provided various …
Real World Applications of Cubic Equations • Physics Forums
Jan 17, 2005 · This discussion centers on the real-world applications of cubic and higher-order polynomial equations, specifically cubic (third degree) and septic (seventh degree) equations. …