Write Two Equations at the Same Line in Latex

[EngWiPy]

Hello,

How can I write two differents equations at the same line using Latex? for example:

$$\begin{align}<br /> y_1(x)=&x^2\\<br /> y_2(x)=&2x+1<br /> \end{align}$$

Thanks in advance

 

[minger]

You could either "jimmy" it by just putting spacing characters in between, or put them in a matrix.
$$y_1(x) = x^2 \,\,\,\,\, y_2(x) = 2x+1$$

y_1(x) = x^2 \,\,\,\,\, y_2(x) = 2x+1

Or a slightly more elegant
$$\begin{array}{cc}<br /> y_1(x) = x^2 & y_2(x) = 2x+1 \\<br /> \end{array}$$

\begin{array}{cc}
y_1(x) = x^2 & y_2(x) = 2x+1 \\
\end{array}

 

[EngWiPy]

You could either "jimmy" it by just putting spacing characters in between, or put them in a matrix.
$$y_1(x) = x^2 \,\,\,\,\, y_2(x) = 2x+1$$

y_1(x) = x^2 \,\,\,\,\, y_2(x) = 2x+1

Or a slightly more elegant
$$\begin{array}{cc}<br /> y_1(x) = x^2 & y_2(x) = 2x+1 \\<br /> \end{array}$$

\begin{array}{cc}
y_1(x) = x^2 & y_2(x) = 2x+1 \\
\end{array}

First, thank you for replying. Second, I want the equation numbers, and the two equations be at the two extreme edges (left and right) of the page. Can we do that?

 

[minger]

OK, I got something. I had to switch to the tabular environment; it has some better column definition flexibility (furthermore, you really need to use the tabular* environment). Either way, you get the optional table width with you will typically want to use

0.8\textwidth

or something like that. For the purpose of displaying it proprely on this webpage, I have chosen an arbitrary width. The

}{@{\extracolsep{\fill}}

is important as it let's the columns have "rubber widths" so they decide how wide they should each be.
$$\begin{equation}<br /> \begin{tabular*}{20cm}{@{\extracolsep{\fill}} l r }<br /> y_1(x) = x^2 & y_2(x) = 2x+1 \\<br /> \end{tabular*}<br /> \end{equation}$$

\begin{equation}
\begin{tabular*}{20cm}{@{\extracolsep{\fill}} l r }
  y_1(x) = x^2 & y_2(x) = 2x+1 \\
\end{tabular*}
\end{equation}

Hope that helps.

edit: Check out thsi page for more information
http://en.wikibooks.org/wiki/LaTeX/Tables

 

[fatra2]

Have you thought of minipage environment. It should allow you to do such a thing.

Cheers

 

[phanithegreat]

my first reply

$$P_h^a_n^i /, /, /, 985685<br /> 9//1//2$$

 

[EngWiPy]

Have you thought of minipage environment. It should allow you to do such a thing.

Cheers

Ok, thank you. you are right, minipage environment solves the issue. Here is the code:

$$\begin{minipage}{0.5\linewidth}<br /> \begin{equation}<br /> y_1(x)=x^2<br /> \end{equation}<br /> \end{minipage}<br /> \hspace{0.5cm}<br /> \begin{minipage}{0.5\linewidth}<br /> \begin{equation}<br /> y_2(x)=2x+1<br /> \end{equation}<br /> \end{minipage}$$

Thank you all guys.

Regards

 

[minger]

Oh you wanted the equations numbered separately. Well glad you found it.