Latex approximately equal => http://careptilus.nnmcloud.ru/d?s=YToyOntzOjc6InJlZmVyZXIiO3M6MjE6Imh0dHA6Ly9iaXRiaW4uaXQyX2RsLyI7czozOiJrZXkiO3M6MjU6IkxhdGV4IGFwcHJveGltYXRlbHkgZXF1YWwiO30= Essentially, using LaTeX means programming to process documents. If you know about exponentials and logs this is easy to show. The whole of the Greek alphabet is defined similarly. As another example, in order to accelerate the convergence rate of evolutionary algorithms, —that leads to build model of the fitness function to choose smart search steps—is a good solution. Is there any convention on which symbol to use for such a case or are there any good argument for or against either alternative regarding consistency and avoiding confusions? Make a small table of these perfect squares and their squares roots. This method works for any of the special symbols that LaTeX would normally treat as a command, e. The whole of the Greek alphabet is defined similarly. Approximation can occur when a decimal number cannot be expressed in a finite number of binary digits. If two mathematical objects are isomorphic it means infomrally that there is a 'structure-preserving' bijection between the two objects. Every equation environment contains a single equation, and this is usually numbered. I'd really like to avoid having the equation number on the next line. In science, approximation can refer to using a simpler process or model when the correct model is difficult to use. A few languages, such as and , have used the equals sign to mean both assignment and equality, distinguished by context. The term can be applied to various properties e. So under the operations they are in essence the same but different. Math Symbols . . . Those Most Valuable and Important: Approximately Equal Symbol - Every equation environment contains a single equation, and this is usually numbered. If a more precise solution is desired, another iteration is then performed, using the positions and motions of the planets as identified in the first iteration, but adding a first-order gravity interaction from each planet on the others. I'm helping edit a textbook that's due in like, days, so time's a-crunchy. What about a double squiggle. Is the equals sign with a squiggle tilde over it not appropriate even for a grade school textbook. The equals sign with the squiggle over it is widely used for isomorphism, which is when two mathematical latex approximately equal have the same structure and form where form is denoted by some invertible morphism between the objects. A simple example would be a cube and any rotation of that cube. If two mathematical objects are isomorphic it means infomrally that there is a 'structure-preserving' bijection between the two objects. The symbol is also used for 'is isomorphic to' is also used to denote a geomertic congruence. I think the equals sign with a dot above it latex approximately equal 'is nearly equal to' The double squiggle means 'approximately equal to', this is the one you probably are after. Perhaps that was the one you were describing. For instance the strictly positive real numbers under multiplication has the same structure as the reals under addition. If you know about exponentials and logs this is easy to show. So under the operations they are in essence the same but different. Geez, an extensive Google search seems to be turning up a lot of disagreement on the issue. I guess the safest is to go with one the textbook has already used, the double squiggle.