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  1. 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. …

  2. 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 …

  3. Equation of a rectangle - Mathematics Stack Exchange

    Oct 2, 2011 · I need to graph a rectangle on the Cartesian coordinate system. Is there an equation for a rectangle? I can't find it anywhere.

  4. 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 …

  5. 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 …

  6. Transformations of the circle equation - Mathematics Stack …

    Dec 21, 2023 · I know to translate the circle equation we just need to change the values in the brackets of the general circle equation $ (x-x_1)^2+ (y-y_1)^2=r^2$ , and in order to dilate a …

  7. 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?

  8. General formula for solving quartic (degree $4$) equations

    Jul 28, 2010 · Could you change the title to "Is there a general formula for solving 4th degree polynomial equations" or "Is there a general formula for solving quartic equations?"

  9. How to calculate the intersection of two planes?

    @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 \$ …

  10. How to solve the Riccati's differential equation

    Aug 13, 2013 · You'll need to complete a few actions and gain 15 reputation points before being able to upvote. Upvoting indicates when questions and answers are useful. What's reputation …