Categories Angle Catalog Char Digits Greek International Letters Other Drawing Colors Commands Finance Calc Vars Keypad Libraries List Math Names Ops Math Complex Math Number Probability Matrix Math Names Memory Mode Operators Other (non-catalog) Assembly Other TI-Basic Editor Program Control I/O Punctuation Grouping symbols Operators Post Operators Stat Plot Mark Plots Type Statistics Distributions EQ Operations Points Test XY Σ Table Settings Test Time Variables GDB Images Pictures Sequences String Table Window ➤ T/θ Window ➤ U/V/W Window ➤ X/Y Zoom Window Y= Functions Function On/Off Parametric Polar