Different speeds for HP-41CX and HP-41CV

[hth]

The time difference you see is the HP-41CX having to search longer to find the FACT instruction.

When you type a function, the HP-41 has to look it up. First it searches catalog 1 (user programs), then it searches catalog 2 (plug-in modules), finally it goes to catalog 3 (builtin functions) where it finds FACT.

The HP-41CX comes with 2 modules that need to be searched, the HP-41CV has an empty catalog 2 so it gets past faster.

Depending on what user programs you have, it may also affect the time it takes.

A better test is to enter 69 FACT into a program, then run it on both machines.

Håkan