Xcalc: Internal Functions

Internal Functions

get_undef(expr)

Parses the values where x is undefined from the expression (WIP)

add_item(list, element)

Adds element to list and returns the modified list

filter_cplx(list)

Removes all imaginary/complex values of list

Stores result in global variable filter_val

safe_bool(value)

Returns false if value is not a boolean

Otherwise it returns value