FriCAS Code

Make sure formal derivatives are commutative.

fix comparison of arguments

Rename 'setelt' to 'setelt!'

Add 'qsetfirst!' and 'qsetrest!'

Implement missing functions in Dequeue.

remove trailing whitespace, trailing empty lines, expand tabs

remove trailing whitespace
find . -type f -a ! -regex '\./\.git/.*' -a ! -name '*.ps' -a ! -name '*.daase' -a ! -name '*.icns' -exec sed -i 's/[ \t]*$//' {} \;

remove trailing empty lines
find . -type f -a ! -regex '\./\.git/.*' -a ! -name '*.ps' -a ! -name '*.daase' -a ! -name '*.icns' -exec sed -i -e :a -e '/^\n*$/{$d;N;};/\n$/ba' {} \;

expand tabs to spaces
for f in $(grep -lR ' ' *|grep -v Make|grep -v config|fgrep -v '.as'|grep -v '.ht$'|grep -v 'diff$'|grep -v 'icns$'|grep -v rules|grep -v ChangeLog); do expand $f > $f.x; mv $f.x $f; done

Fix ArrayStack.

Evaluate the lambertW function for the special value at -1/e.

Fix wrong changes of variables.

Factor Trager resultant in appropriate extension.