!set methtit=Exchange the two sides of an equation
!set methparmtype=parm equation
!set methhelp=This method rewrites the eqnation \(a = b) into \(b = a).

!if $wims_read_parm iswordof form check
  !goto $wims_read_parm
!endif

!exit
:form
Exchange the two sides of the equation
!read deduc/methparm.phtml 1

!exit
:check
!distribute items $methparmobj1 into data,left,sign,right
methexp=Exchange the two sides of \($left $sign $right)

newobject1=$right $sign $left
oldobject=1

contextlist=$ct_Always,\
	$ct_Onlywhen the two sides are positive,\
	$ct_Onlywhen the two sides are of the same sign

!exit
