Hewlett Packard HP10S Two Line Scientific Calculator

Hewlett Packard HP10S Scientific Calculator Features: Two line, 10 character LCD display 240+ built-in functions Dual Power (Solar with battery back up) Permitted for use on the GCSE maths exam Work with fractions and solve logs, powers and roots Find the mean, standard deviation and variance Decimal/degrees conversions Permutations, combinations and factorials Power for solving inverse functions. 9 independant memories