Math fanatics will be more happy with the new calculator released by the Basyang Electronics Company.
The newly-released calculator, with code LB-143EZ, adds two new buttons, negative (-?) and postive (+?) infinity. This allows the user to create functions with infinity, especially improper integrals where the function results to undefined, commonly depicted as positive infinity on some math books. An example of this new feature is when the arc-tangent of positive infinity (Input: arctan (+?)) is input by the user on the calculator, it will return "pi/2" (Display: ?/2) in Math IO mode or "1.570796327" in Linear IO mode that accommodates up to ten digits.
In an interview, the inventor, Lopi Tall, stated that the new feature allows the user to divide by zero as the user pleases. But when trying to input an indeterminate form, it will return an error stating that the form is indeterminate.
"That is the first release, and the next will be similar to WolframAlpha's engine," Tall added.
The calculators were sold out at the first day of its release.