HP 35s User Manual page 234

Program Lines:
(In RPN mode)
  
 
  
 
  
 
  
 
  
 
  
 
  
 
  
 
 
Note:
1. If you want to recall the value from an undefined storage address, the error
message " "will be shown". (See A014)
2. The calculator allocates memory for variable 0 to the last non-zero variable. It is
important to store 0 in variables after using them in order to release the
memory. Each allocated indirect register uses 37 bytes of program memory.
3. There is a maximum of 800 variables.
14-24
Programming Techniques
Defined the storage address range "0-100" and saved
"12345" into address 100.
Saves "67890" into address 150. The defined indirect
storage range is now "0-150".
Stores 0 into indirect register 100. The defined range is
still "0-150".
Display "INVALID (I)", because address "170" is
undefined
Description: