Dec 31, 2014 · equation：等式，方程式 英英释义： An assertion that two expressions are , expressed by writing the two expressions separated by an equal sign; from which one is to determine a …

Apr 15, 2018 · the equation to simpler equation (s) and end up with an equation that can be solved by inspection. In all these cases the equality tells you two things are really the same. What you do with …

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 …

首先，我们要明白这两个环境分别能干什么。下面两段文字摘抄自l-short: 单独成行的行间公式在LaTeX里由equation环境包裹。 更多情况的是，我们需要罗列一系列公式，并令其按照等号对齐。目前最常 …

May 28, 2013 · If we want an equation f(x, y) for the line, the domain of f can only be the shadow of the line on the xy plane. But any nice function f will have as a domain either all pairs (x, y), or almost all …

Jul 12, 2023 · For example, this equation: x 3 = x 2 ⋅ y x 3 = x 2 y When you graph it out, you can see that there are two lines which intersect perpendicularly. Giving the answers x = 0 x = 0 and y = 2 3 y …

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 −x1)2 + (y −y1)2 =r2 (x x 1) 2 + (y y 1) 2 = r 2 , and in order to dilate …

Dec 30, 2025 · Thanks but I still do not understand how you change the original equation to x(y) x (y) -land, especially for x′′(y) x ″ (y) part. I know how to change dy dx d y d x to dx dy d x d y by imagining …

The problem now arises is that we want to inverse Fourier transform u^ u ^ to obtain the solution. But u^ u ^ has singularities on the sphere of radius k k. How do we proceed in a rigorous distributional way …

Mar 2, 2015 · I am supposed to find an equation for the circle that has center (−1, 4) (1, 4) and passes through (3, −2) (3, 2). I tried graphing it, but it didn't help since the point was not in a straight line with …