What is the difference between equation and formula?
An equation is a statement that connects two expressions with an $=$ sign and asserts their equality. An identity is an equation that holds for every variable tuple for which the equation is …
What is the equation for a 3D line? - Mathematics Stack Exchange
May 28, 2013 · Stack Exchange Network. Stack Exchange network consists of 183 Q&A communities including Stack Overflow, the largest, most trusted online community for …
Equation of a rectangle - Mathematics Stack Exchange
Oct 2, 2011 · If the equations of the diagonals of the rectangle are Ax + By + C = 0 and Dx + Ey + F = 0 then an equation for the rectangle is: M|Ax + By + C| + N|Dx + Ey + F| = 1. M and N can …
simple geometry question- equation of cylinder
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 point is on the …
在理工科中，Formula, Equation 和 Function 这三个词有什么异 …
Dec 31, 2014 · Equation常指方程,用方程来求解未知数,或者解出多个未知数间的对应关系. equation作为等式用的情况我感觉不常见,可能是某些常用的方便计算的式子,或者某些先决条 …
Difference between "≈", "≃", and "≅" - Mathematics Stack Exchange
In my work "=" is the identity of a number so it states an equivalence. 1=1, 2x=10 ie x =5. The approximation sign "≈" I use for decimal approximations with tilde "~" being a rougher …
Compute the characteristic equation of a $3 \\times 3$ matrix
May 1, 2025 · The characteristic equation is used to find the eigenvalues of a square matrix A. First: Know that an eigenvector of some square matrix A is a non-zero vector x such that Ax = …
Ellipse general equation from dimensions, offset, and tilt angle
Aug 13, 2020 · What is the equation for an ellipse in standard form after an arbitrary matrix transformation? 0 Rotated Ellipse (Parametric) - Determining Semi-Major and Semi-Minor Axes
geometry - Get the equation of a circle when given 3 points ...
Apr 20, 2017 · Now we are looking for the equation of a circle through the origin and two other points, which is of the form $$(x-x_c)^2+(y-y_c)^2-r^2=x^2-2xx_c+y^2-2yy_c=0,$$ as there is …
Intuitive explanation of the backward Kolmogorov equation?
Oct 9, 2024 · (20) in Shah et al, 2007), $$ dX = \big(-v + K'(X, t) \big)\, dt + \sqrt{2K(X, t)}\, dW_t. $$ Basically this equation has the backward Kolmogorov equation for the forward SDE as it's …