elements.txt

Command     
-------
+        a: number, b: number     Addition (a+b)         
         a: number, b: string     Concatenate (a+b)
         a: string, b: number
         a: string, b: string
         a: list,   b: any        Vectorise
         a: list,   b: list       Zipped addition (a[0]+b[0],a[1]+b[1].....)
         a: any,    b: list       Join b by a

-        a: number, b: number     Subtraction (a-b)
         a: string, b: string     Non-regex replace b from a with empty string (remove) (a-b)
         a: string, b: number
         a: number, b: list       Remove a'th element of b
         a: number, b: string
         a: list,   b: any        Vectorise
         a: list,   b: list       Zipped subtraction (a[0]-b[0],a[1]-b[1].....)

×        a: number, b: number     Multiplication
         a: string, b: number     Times (a repeated b times)
         a: number, b: string     Times (b repeated a times)
         a: string, b: string     Append each character in b to a (make a list)
         a: any,    b: list       Vectorise 
         a: list,   b: any        
         a: list,   b: list       Zipped multiplication (a[0]×b[0],a[1]×b[1].....)