Subversion Repositories wimsdev

ker=!item 2 of $methparmobj1
ker=!mathsubst integrate= in $ker
ker=!trim $ker
ker=!declosing $ker
!distribute items $ker into iker,ivar
vartest=!varlist $ivar
!if $ivar != $vartest
  error=Fail
  !exit
!endif

!bound methparm2 between integer 0 and $basiccnt default 0
!if $methparm2=0
 error=empty_data
 !exit
!endif

form=!item $methparm2 of $basic
ftest=$form
form=!mathsubst a=1 in $form
form=!mathsubst t=$ivar in $form
!if $ftest=a*t^b
  test=!mathsubst $ivar=1 in $iker
  coef=$[$test]
  !if NaN isin $coef
    !goto badformula
  !endif
  !if $coef=0
    !if $[$iker]!=0
      !goto badformula
    !else
      !goto OK
    !endif
  !endif
  !read deduc/sub/simplify log(($iker)/($test))/log($ivar)
  power=$[$out]
  !if $out=$empty or NaN isin $power or Inf isin $power
    !goto badformula
  !endif
  !goto OK
!endif
!read deduc/sub/simplify ($iker)/($form)
test=$[$out]
!if NaN isin $test
  :badformula
  error=Bad formula!
  !advance penalty
  !exit
!endif
!if Inf isin $test or $test=0
  error=bad_data
  !exit
!endif

:OK
got=!exec maxima integrate($iker,$ivar)
!if $got=$empty or integrate isvarof $got
  error=Fail
  !exit
!endif

newobject1=($got)
oldobject=1
methexp=basic formula