An equation is any expression with an equals sign, so your example is by definition an equation. Equations appear frequently in mathematics because mathematicians love to use equal signs. A formula is a set of instructions for creating a desired result. Non-mathematical examples include such things as chemical formulas (two H and one O make H2O), or the formula for Coca-Cola (which is just a ...
It seems to me an equation, in an abstract sense, must always involve some varying quantities where the varying quantities belong in some space (set, algebraic structure, what have you). In order to
If we want an equation $f (x, y)$ for the line, the domain of $f$ can only be the shadow of the line on the $xy$ plane. But any nice function $f$ will have as a domain either all pairs $ (x, y)$, or almost all of them.
What is the equation for a 3D line? - Mathematics Stack Exchange
I want to derive the equation of motion for the an average skydiver free falling to earth with air resistance, most the solution online doesn't use the drag force formula to avoid making the problem
This jingle has helped generations of algebra students recall the quadratic formula that solves every equation of the form $latex ax^2+bx+c=0$. The formula is as ...
A collage of images of Schrödinger, his 100-year-old paper and his equation. The Schrödinger equation was integral to changing the way the world saw chemistry as a science. Credit: Madeline Monroe/TKH ...
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