Bo Peng schrieb:
I checked the tip and trick page and lyx mathed manual, \intertext is not supported by lyx. However, is there a way to use ERT to do this? I could not let the ERT have its own line (without alignment). I am using lyx-1.2.1.the example from the manual written in ert:
\[
\begin{split}
A_{1} & = \left| \int _{0}^{1}(f(x)-g(x))dx\right| +\left| \int _{1}^{2}(g(x)-h(x))dx\right| \\
& = \left| \int _{0}^{1}(x^{2}-3x)dx\right| +\left| \int _{1}^{2}(x^{2}-5x+6)dx\right| \\
\intertext{Now the limits of the integrals are used}
& = \left| \frac{x^{3}}{3}-\frac{3}{2}x^{2}\right| _{0}^{1}+\left| \frac{x^{3}}{3}-
\frac{5}{2}x^{2}+6x\right| _{1}^{2}\\
& = \left| \frac{1}{3}-\frac{3}{2}\right| +\left| \frac{8}{3}-\frac{20}{2}+12-
\left( \frac{1}{3}-\frac{5}{2}+6\right) \right| \\
& = \left| -\frac{7}{6}\right| +\left| \frac{14}{3}-\frac{23}{6}\right| =\frac{7}{6}+
\frac{5}{6}=2\, \textrm{FE}
\end{split}
\]
BTW, link "multline environment" in "math-tips" page (
http://www.educat.hu-berlin.de/~voss/lyx/mathstuff/mathmode.phtml ) is broken.
thanks, I deleted the link.
Herbert
