Recommended and approved for as a level core maths and international baccalaureate ib this new model replaces the casio fx cg20 adding 3d graph capability high resolution colour display with over 65 000 colours with natural textbook display showing fractions square roots and other numerical expressions in the same way as they appear in textbooks over 3 000 functions to include equation solvers spreadsheets graph solvers data charts matrix and vector calculations e activity