Examples:

Question

Examples: The water molecule: H₂0 Quadratic: ax² + bx + c = 0 Just like you would use the b tag for bold or the i tag for italic, use the sub and sup tags for subscript and superscript. that's great...but what do you mean "b tag" and "i tag" ?? the b tag is for bold. The i tag is for italics. We place a < sign followed by b or i followed by >. It looks like this, but to show it I must place a question mark. You would leave the ? out. without the ? will put everyting in bold. To stop bold, the slash mark is used. That is without the question mark will stop the bold. OK thanks practicing no bold practicing H₂O You have it. Thanks. But you're right... n^ot e_as^{y

I'm glad we have that but it isn't EASY to use. It takes about 10 times the time to write
Na₂SO₄ + BaCl₂ ==> 2NaCl + BaSO₄

Testing -- a cobb-douglas function.

Q = A(K^aL^(1-a))

It does take time, but it sure makes the text more readable. I'm used to using LaTeX and equation writer, so I never thought to check -or ask- if this site supported tags.
Test:
Fermat primes: The n^th Fermat prime, F_n=2^2ⁿ+1
F₀=3
F₁=5

Let's see if S can be used for an integral here:
If F(x) is any anti-derivative of f(x), then
S^b_af(x)dx = F(b) - F(a)

too bad we don't have the medial s...oh well.

this should be bold
this should be underlined
this should be italics
this would be a square root in LaTeX
This would be 1/2 1 2}