HP 35s HP 35s scientific calculator - User Guide - Page 304

Category CLEAR ALL MEMORY CLEAR (Default) Angular mode Base mode Contrast setting Decimal point Thousand separator Denominator (/c value) Display format Flags Complex mode Fraction-display mode Random-number seed Equation pointer Equation list FN = label Program pointer Program memory Stack lift Stack registers Variables Indirect Variables Unchanged Unchanged Unchanged Unchanged Unchanged Unchanged Unchanged Unchanged Unchanged Unchanged Unchanged EQN LIST TOP Cleared Null PRGM TOP Cleared Enabled Cleared to zero Cleared to zero Not defined Degrees Decimal Medium "" "1,000" 4095 FIX 4 Cleared xiy Off Zero EQN LIST TOP Cleared Null PRGM TOP Cleared Enabled Cleared to zero Cleared to zero Not defined Logic Unchanged RPN Memory may inadvertently be cleared if the calculator is dropped or if power is interrupted. The Status of Stack Lift The four stack registers are always present, and the stack always has a stack-lift status. That is to say, the stack lift is always enabled or disabled regarding its behavior when the next number is placed in the X-register. (Refer to chapter 2, "The Automatic Memory Stack.") All functions except those in the following two lists will enable stack lift. B-4 User Memory and the Stack