Dec 31, 2014 · 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.

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。目前最常用的是align环境，它将公式用 & 分隔为两部分并对齐。 通俗地讲，equation环境是处理行间公式的一种 ...

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.

May 28, 2013 · If we want an equation f(x, y) f (x, y) for the line, the domain of f f can only be the shadow of the line on the xy x y plane. But any nice function f f will have as a domain either all pairs (x, y) (x, y), or almost all of them. With all of that being said, it is possible to cook up a function f(x, y) f (x, y) whose graph is a line.

最近工作需要用结构方程模型（structural equation modelling，SEM）。 我希望在这里记录一下我的学习笔记。 SEM也叫“潜变量的回归分析”（regression analysis with latent variables），总之，就是（多元）回归分析，但用的变量包括“潜变量”。

Aug 23, 2023 · LaTeX公式太长时，可以使用双斜杠换行，并添加不显示的括号来对齐。

Jul 28, 2010 · There is, in fact, a general formula for solving quartic (4th degree polynomial) equations. As the cubic formula is significantly more complex than the quadratic formula, the quartic formula is significantly more complex than the cubic formula. Wikipedia's article on quartic functions has a lengthy process by which to get the solutions, but does not give an explicit …

贝塞尔方程 (the Bessel differential equation)在物理学诸多领域都有非常广泛的应用，如柱坐标下波的传播，薛定谔方程的解，薄膜振动，热传导等等。下面不加证明地总结贝塞尔函数的一些性质，相关证明较为繁琐，可查看相关专著，如：《数学物理方法》—吴崇试等； 《数学物理方法》— …

完全就是一张图片。 后来经过排查，发现是她在机房使用 低版本的word 打开过文件（好像是2003还是2010），低版本的word 打开文件后，会自动将equation对象的公式转换为图片格式。 这样如果后期进行修改会特别麻烦，还好后续修改的公式格式不算太多。

Aug 13, 2020 · Ellipse general equation from dimensions, offset, and tilt angle Ask Question Asked 4 years, 11 months ago Modified 4 years, 11 months ago