Variable * variable_move(Environment *_environment, char *_source, char *_destination)
Store the value of a variable inside another variable by converting it.
Variable * variable_div(Environment *_environment, char *_source, char *_destination, char *_remainder)
Make a division between two variable and return the product of them.
Variable * y_text_get(Environment *_environment, char *_y)
Return the text ordinate for the given graphic ordinate.