Battery powered scientific calculator with 4-line display 3 digit punctuation 335 functions and 2 key rollover.
Sharp ELW531B Scientific Calculator
When you need to go beyond everyday calculations and work out more difficult mathematical problems, you need to use the Sharp ELW531B Scientific Calculator. Sharp has designed this calculator to stand up to even the most difficult sums allowing you to do quadratic functions, trigonometry and other problems with ease.
With a four line display and 335 functions, you have an unprecedented level of control over your input, allowing you to create clear sums that meet your specification.