A quick demo of the new features in DB48X between 0.7.2 (last video update) and 0.7.5 (released yesterday):

1/ Sums and products
2/ Combinations and permutations
3/ Userdefined algebraic functions
4/ No need to explicitly clear errors
5/ Configurable word wrapping in text editor
6/ Store and recall BMP files from FAT partition
7/ Convert objects to graphic format
8/ All HP50G stack manipulation commands implemented
9/ Arithmetic Store and Recall (STO+, RCL*, etc)
10/ Accepting 3i for imaginaryonly numbers
11/ ToolsMenu for expressions
12/ Polynomials objects
13/ Cycle on expressions
14/ Additions to the Characters menu