I am trying to program in William Kolb's curve fit program which is now free online into my iPhone HP41CV simulator. I have figured out how to input all the keystrokes except for the { and the (. These appear in the program as alpha characters but from the keyboard, I just don't know the keystrokes to get these brackets to appear. Any help would be appreciated.
PS: I am a long time user of the HP41CV which I bought back in the 80's. I still have it but have not used it in a long time. I need N batteries for it.
Jeff Mothersbaugh