Gold Key
Press to use the alternate function of a key.
CLX
Clears the display (stack register X). The next keyboard entry will not raise the stack.
 
CLEAR
Clears the stack (X,Y,Z,T) and the storage registers 5 through 8.
 
LAST X
Retrieves the last input argument of a calculation. Handy for correcting errors.
Exchange
Swaps the contents of the stack registers X and Y.
Roll Down
Rolls down and displays the stack registers in last-in, first-out order. Returns to original position with every fourth roll down operation.
Percentage
Calculates x% of y. The stack remains unchanged.
 
Percent Difference
Calculates the percent difference between y and x. The stack remains unchanged.
 
Factorial
Calculates the factorial of x, i.e. 1 times 2 times 3...times x. x must be a natural number or 0. Numbers higher than 69 will result in overflow.
 
Store in Storage Register
Stores the displayed value in storage register n. n must be in the range 1...9.
  
Store Arithmetic
Adds the displayed value (x) to the value stored in storage register n. The result replaces the previous value in register n. n must be in the range 1...9. Also works for subtraction, multiplication, and division.
 
Recall from Storage Register
Recalls a copy of the value stored in storage register n and displays it (x). n must be in the range 1...9.
  
Recall Arithmetic
Adds the value in storage register n to the displayed value. Register n remains unchanged. n must be in the range 1...9. Also works for subtraction, multiplication, and division.
 


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