- 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 Your example is a formula for mpg But it can become an equation if mpg and one of the other value is given and the remaining value is sought
- What exactly is an equation? - Mathematics Stack Exchange
One approach: An equation is a predicate, P(x) P (x), of the form s(x) = t(x) s (x) = t (x) where x x is a free variable (or vector of free variables) and s(x), t(x) s (x), t (x) are terms -- expressions which evaluate to elements of the universe (e g real numbers if you are doing mathematics over the reals) when values are substituted for variables This means that P(x) P (x) is something
- 在理工科中，Formula, Equation 和 Function 这三个词有什么异同？ - 知乎
equation：等式，方程式 英英释义： An assertion that two expressions are equal, expressed by writing the two expressions separated by an equal sign; from which one is to determine a particular quantity
- simple geometry question- equation of cylinder
All points on it have x=0 and y=0 Clearly it is a line with any z-allowed You could write the equation of the axis as x2 +y2 = 0 x 2 + y 2 = 0, because in the reals the only solution to this equation is x = 0 x = 0 and y = 0 y = 0 This shows you that the z-axis is like an infinitely thin cylinder (with a point cross section 0 radius)
- Equation of a rectangle - Mathematics Stack Exchange
I need to graph a rectangle on the Cartesian coordinate system Is there an equation for a rectangle? I can't find it anywhere
- Difference between ≈, ≃, and ≅ - Mathematics Stack Exchange
In mathematical notation, what are the usage differences between the various approximately-equal signs "≈", "≃", and "≅"? The Unicode standard lists all of them inside the Mathematical Operators B
- geometry - What is the general equation for rotated ellipsoid . . .
The equation has the form of a generic second degree equation in three unknowns but, in general, it os mot so simple to see what kind of quadric surface this equation represents If you are interested on this topic you can search for ''quadratic forms''
- geometry - Get the equation of a circle when given 3 points . . .
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?
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