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# Mathematical expressions

For page specific messages
For page specific messages

For creating/editing with mathematical expressions in it, you can use TeX/LaTeX syntax.

Here is a sample equation, which is Physics-wise much more complex than its type-setting!

$$\left [ - \frac{\hbar^2}{2 m} \frac{\partial^2}{\partial x^2} + V \right ] \Psi = i \hbar \frac{\partial}{\partial t} \Psi\nonumber$$

### Use (La)TeX code

For creating/editing with mathematical expressions in it, you can use TeX/LaTeX syntax. Here is a sample equation, much more complex than its type-setting!

$$\left [ - \frac{\hbar^2}{2 m} \frac{\partial^2}{\partial x^2} + V \right ] \Psi = i \hbar \frac{\partial}{\partial t} \Psi\nonumber$$

Using TeX/LaTeX will require some effort in the beginning, but it brings in tremendous flexibility in working with inline mathematical expressions or equations in separate lines.

### MathJax for rendering

The mathematical expressions are rendered with the help of MathJax library (after the preview or saved page is loaded). This approach does not involve any image generation for mathematical expressions, and therefore the displayed expressions scale without any problem.

The section 1.1 below shows many sample mathematical expressions.

### Troubleshooting

[Important: If you are copying-pasting (La)TeX code into the HTML editor provided at 0space, and the expression/equation formatting is giving you trouble, select the mathematical expression/equation and clear formatting first.

• In WYSIWYG HTML editor, Enter key inserts a new paragraph and soft Enter (Shift+Enter key) inserts a line-break.
• While editing La/TeX code of mathematical expressions, always use Shift+Enter for newline (if you need to make the code more readable).

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