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 …

Learn how to install Microsoft Equation 3.0 in Microsoft Office 365 with expert answers to your questions. Get step-by-step guidance and tips here!

@rocksNwaves The normal vector comes from the plane equation coefficient in front of x, y and z. Parameterization comes from the line equation \$ t * \vec {u} + T\$ with T being the point \$ x=0, y=0, …

If instead we center at the right focus and follow the same steps, we obtain $$ r=\frac {a (1-\epsilon^2)} {1+\epsilon\cos\theta} $$ This geometric approach also extends naturally to hyperbolas and …

The general equation for an ellipse is $Ax^2+Bxy+Cy^2+D=0$. How do I find the angle of rotation, the dimensions, and the coordinates of the center of the ellipse from the general equation and vice versa?

What are the equations to calculate a linear trendline over a set of points? EDIT: "In excel it is done automatically but how to manually calculate a linear trendline over a set of points" was orig...

There is no standard equation for a triangle, like there is for a circle, parabola or ellipse. The reason is that the circle for example has a clear classic geometric definition: A locus of points.

6 in some exam past papers I have been doing I have come across the statistics equation z= (sample mean - mean)/standard deviation as well as the equation z = (sample mean - mean)/ (standard …

A circle has to points on the circumference (0, 1) and (0, 9) that bisect the circle and I have to give the equation of the circle in general form. So I can find the midpoint of the circle as ${(0...

(Equations which can be easily transformed to Cauchy functional equation or can be solved by using similar methods.) Is there some overview of basic facts about Cauchy equation and related functional …