[btedji]

to set them:
this.variablename=value;
setstring stringname,value;

to recall them
just use this.variablename when doing calculations
use #v(this.variablename) when used in string operations

use #s(stringname) to recall the actual string content
use strtofloat(#s(stringname)) to recall the string as a number

tell me if you understand