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What is the difference between equation and formula? 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
What is the equation for a 3D line? - Mathematics Stack Exchange 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 plotting software will be able to graph it correctly
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 object; if the equation is not true for that point, then the point is not on the object
Notation for rounding in equation - Mathematics Stack Exchange I'm wondering if there is a symbol or notation for Round to the nearest 10th For example, the area of a circle with a radius of 45 feet, rounded to the nearest square foot, could be written as, A =
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 , sin2x+cos2x= 1 sin 2 x + cos 2 x = 1 is true for all x If however the equation in question only holds for some values, which one is supposed to determine, then it's called conditional, and its variable is termed an unknown
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 parabolas Its main advantage is that it avoids solving a complicated quadratic equation I hope this helps!