Casio fx-115s- Manuals

7 We will shortly show how to solve these problems and do new and interesting things very naturally. But it is important to be clear that there really are problems rather than just technical inconsistencies or limitations. People usually deny there are problems with calculators. Ask anyone what the ...

9 literally a ‘fill in the blanks’ approach familiar from primary school maths books. What power of 2 is 100? Just enter 2 ↑ = 100, and the correction is 2 ↑ 6.6438562 = 100. Note that formulae do not need to be rearranged to get the answer after an = sign. In this example, an ordinary calculator wo...

12 article has shown that the problems can be solved: by getting the calculator to show calculations in full; by allowing the user to make any changes they wish; and by maintaining the numbers so that the calculations are always true, moment-to-moment. Sums do not need to be rearranged, hence avoidi...