apoc.math.round(value,[precision=0],mode=[HALF_UP,CEILING,FLOOR,UP,DOWN,HALF_EVEN,HALF_DOWN,DOWN,UNNECESSARY])

rounds value with optionally given precision (default 0) and optional rounding mode (default HALF_UP)

apoc.math.maxLong()

return the maximum value a long can have

apoc.math.minLong()

return the minimum value a long can have

apoc.math.maxDouble()

return the largest positive finite value of type double

apoc.math.minDouble()

return the smallest positive nonzero value of type double

apoc.math.maxInt()

return the maximum value a int can have

apoc.math.minInt()

return the minimum value a int can have

apoc.math.maxByte()

return the maximum value a byte can have

apoc.math.minByte()

return the minimum value a byte can have

apoc.number.romanToArabic(romanNumber)

convert roman numbers to arabic

apoc.number.arabicToRoman(number)

convert arabic numbers to roman