Angus Leeming wrote:
Kayvan A. Sylvan wrote:
On Tue, Apr 19, 2005 at 08:37:14PM -0400, Myriam Abramson wrote:
Hi!
How do you write a case equation in LyX? I mean an equation like
B = { 1 if x > 0;
0 if x = 0
so that the brace covers multiple lines?
I think that you can use the math panel and then click on the button that
looks like a blue box surrounded by brackets. Then you can change the
left bracket to your braces and change the right one to blank.
In the inner blue square, insert a math matrix and fill in the parts.
Actually, it's even easier:
Create a math inset: Insert->Math->Display formula
Type:
B=\cases<space>1<right arrow>\textrm<space>if <Insert->Math->Inline
formula>x>0<right arrow><right arrow><cntl-enter><down arrow><left
arrow>0<right arrow>\textrm<space>if <Insert->Math->Inline formula>x=0<Esc>
Looks horrible, but really it isn't!
Easier still: in a display environment, try Insert->Math->Cases
environment, and use control-enter to add cases as needed. You still
need to switch to textrm font for the "if"s (alt-m m or type ).
-- Paul
