1decimal
2length
3stack_len
4exec_stack_len
5add
6subtract
7multiply
8divide
9modulus
10divmod
11power
12sqrt
13modexp
14boolean
15negate
16trunc
17places
18shift
19abs
20scientific
21engineering
22vars
23misc
24misc1
25strings
26rand
27is_number
28is_string
29