Tests for Octave version that is not 2.0.x, uses setsyssignals() instead of
direct access to internal structure for renaming of system signals. check-in: 19e7f14adf user: geraint@users.sourceforge.net tags: origin/master, trunk

Tests for Octave version that is not 2.0.x, uses setsyssignals() instead of
direct access to internal structure for renaming of system signals. check-in: 1ff704c840 user: geraint@users.sourceforge.net tags: origin/master, trunk

Delimited expressions within function calls to prevent denominators from continuing beyond commas.
Allow latex to adjust size of parentheses according to expression within.
Replaced ^ with \uparrow (less misleading - latex maths doesn't understand operator precedence or words).
Replaced abs(x) with |x| when x does not contain brackets. check-in: 3e6154ff3d user: geraint@users.sourceforge.net tags: origin/master, trunk

Delimited expressions within function calls to prevent denominators from continuing beyond commas.
Allow latex to adjust size of parentheses according to expression within.
Replaced ^ with \uparrow (less misleading - latex maths doesn't understand operator precedence or words).
Replaced abs(x) with |x| when x does not contain brackets. check-in: 5a7e89605d user: geraint@users.sourceforge.net tags: origin/master, trunk