Discard used batteries according to local regulations how to remove or replace the battery the ti 30xs multiviewtm calculator uses one 3 volt cr2032 lithium battery remove the protective cover and turn the ti 30xs multiview calculator face downwards page 43 in case of difficulty press firmly to snap the new battery into place. Ti 30xs instructions and practice 20hzca the ti 30xs multiview screen can display a maximum of four lines with a maximum of 16 characters per line for entries and expressions of more than 16 characters you can scroll left and right and to view the entire entry or expression. Ti 30xs instructions and practice 20hzca the ti 30xs multiview screen can display a maximum of four lines with a maximum of 16 characters per line for entries and expressions of more than 16 characters you can scroll left and right and to view the entire entry or expression. Expressions and functions along with other instructions the answers are displayed on the home screen the ti 30xs multiview screen can display a maximum of four lines with a maximum of 16 characters per line for entries and expressions of more than 16 characters you can scroll left and right and to view the entire entry or expression