Calculators with an ALPHA key
Having just started my ATPL studies I am searching for a suitable calculator. Having read the threads I see that many use either the Casio fx-991ms or the fx-570w.
Looking in the shops I notice that these have an ALPHA key on them. I have been told not to use a calculator with an ALPHA key on it as they are frowned upon by the CAA, so I don't know which to buy.
Am I ok to get one of these or should I get something else ?
Has anyone had any problems using either of the 2 mentioned above with an ALPHA key on them from a CAA point of view?
Thanks
NH