abs:Sum of absolute values
affine:Sum of affine formula
alternate:Alternate sum
cdigits:Count of digits
cdigits1:Count of a digit
conddiv:Conditional coeff by divisibility
condineq:Conditional coeff by inequality
condpar:Conditional coeff by parity
count:. Simple count
digit0:Sum of first digit
digit1:Sum of last digit
digit2:Sum of a digit
digitall:Sum of digits
distconst:Sum of distances with a constant
distind:Indexed sum of distances
gcd1:Sum of gcd I
gcd2:Sum of gcd II
gcd3:Sum of gcd III
indexed1:Indexed sum I
indexed2:Indexed sum II
minmaxconst:Sum min-max with a constant
minmaxind:Index sum min-max I
minmaxind2:Indexed sum min-max II
plain:. Simple sum
sign:Sum of signs
