TI-36X Pro—Replace the batteries or just get a new one?

[lrdheat]

Of course, on the CASIO, a usually excellent approximation is obtained by dividing integral into 2 integrals integrated over intervals 1 E-12 away from the undefined point (occasionally, a larger departure than 1E-12 is necessary).

True, improper integrals were handled by the 36X...not as quickly...