Have these calculators now for two years (High School and 2 semesters studying business administration). And have to say that it is very very good. Mathematics is with this calculator a wide lot easier! Bin faced especially in studies with economic statistics and because of this calculator is a very large workload, since it can even calculate values such as arithmetic mean, variance, correlation coefficient, etc.. The calculator was our math teacher recommended us and thought even then that one can use the well in studies. He was absolutely right!
