
What is the difference between equation and formula?
An equation is meant to be solved, that is, there are some unknowns. A formula is meant to be evaluated, that is, you replace all variables in it with values and get the value of the formula. …
What exactly is an equation? - Mathematics Stack Exchange
Apr 15, 2018 · the equation to simpler equation (s) and end up with an equation that can be solved by inspection. In all these cases the equality tells you two things are really the same. …
What is the equation for a 3D line? - Mathematics Stack Exchange
May 28, 2013 · I love your answer for a line equation in the form of z = f (x, y)... Unfortunately calculating square roots can be impractical from the calculational standpoint and hence I really …
simple geometry question- equation of cylinder
Jul 23, 2014 · The equation of an object is a way of telling whether a point is part of an object -- if you substitute the coordinates of the point into the equation and the equation is true, then the …
What is the difference between an identity, an equation and a ...
Equation means equality. They are both related to the word equal. If such an equality is true for all values of the variable, it is called an identity, e.g., $\sin^2x+\cos^2x=1$ is true for all x. If …
geometry - Get the equation of a circle when given 3 points ...
Apr 20, 2017 · Get the equation of a circle through the points $(1,1), (2,4), (5,3) $. I can solve this by simply drawing it, but is there a way of solving it (easily) without having to draw?
physics - 1D Heat Equation with Insulated Boundary Conditions; …
Jun 16, 2023 · The equation being linear you can set $\beta = 1$. Also your boundary conditions are not of type Neumann homogeneous: how can you know the mass is constant?
intuition - How Bernoulli differential equation arise naturally ...
A Bernoulli differential equation is a non-linear differential equation of the form $$ \\frac{dy}{dx} + P(x)y = Q(x)y^n. $$ I understand this is special; Because its exact solution is known though ...
analysis - How to tell if a differential equation is homogeneous, or ...
Jan 27, 2015 · Sometimes it arrives to me that I try to solve a linear differential equation for a long time and in the end it turn out that it is not homogeneous in the first place. Is there a way to …
Difference between function and equation - Mathematics Stack …
Feb 5, 2021 · An equation is a declaration that two things are equal to each other. For example, $2^2 = 4$ is an equation stating that the square of 2 is 4. An equation may include variables of …