HTML: Writing Mathematical Equations

There are few techniques for coding mathematical expressions in html. I am giving out some of them here. We can make use of <sub> and <sup> tags to write simple equations containing powers(squares, qubes) and numbered constants. Here is an example for such equation: a₁x²+b₂x+c₃ = 0

a<sub>1</sub>x<sup>2</sup>+b<sub>2</sub>x+c<sub>3</sub> = 0

For Squres and qubes , you can use &sup2; and &sup3; codes instead of using <sub> tags. Moving on to Fractions, we face problem in arrage numerator and denominators in required position. This can be solved if you make use of html tables. For Example

y = x.tanθ -	gx²
	u²cos²θ

The above formula is purely written in HTML using table. Source Code:

<table><tr> <td rowspan=2> y = x.tanθ - <td align=center> gx²<br /> <tr> <td align=center> <hr color=0>u²cos²θ </table>

Note: In HTML, in some cases, such as in tables, no closing tags are required.