
when to use which z score equation? - Mathematics Stack Exchange
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 …
How to Install Microsoft Equation 3.0 in Office 2016, 2019, 2021, and 365
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!
Equation of a plane given point and line - Mathematics Stack Exchange
as a point lying on the line. Now write the equation of the line passing P P and the point you have above A: (1,3,−2) A: (1, 3, 2). Then find the cross product of two leading vector, one is for the first line, and …
Ellipse in polar coordinates - Mathematics Stack Exchange
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 …
What is the equation used to calculate a linear trendline?
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...
Is there any equation for triangle? - Mathematics Stack Exchange
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.
logarithms - Finding the Equation of a Straight Line on a Log-Log Plot ...
May 30, 2019 · Given two discrete points on a log-log plot and a defined minimum value on both axes, how would you determine the equation of the line that runs through both points?
Does a square have an equation? - Mathematics Stack Exchange
Does a square have an equation? [duplicate] Ask Question Asked 11 years, 9 months ago Modified 11 years, 9 months ago
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 doubt any …
Equation of a "tilted" sine - Mathematics Stack Exchange
Nov 21, 2017 · I would like to know what's the equation of a "tilted" sine, that looks like this (no idea how to show it better). I remember first seeing this waveform in some kind of sound synthesizer, where on...