Daniel.
Press [MODE], scroll down to Number Format...,
press [CHOOS], select Fixed, press [OK],
select the number of places you want
displayed after the decimal point.
Is that what you meant by "algarisms?"
In a program you can do:
4 FIX
which will set the calculator mode to display 4 decimal places, then
use
STD
to set the mode back to standard after you're done if you wish
This would address the definition of "number", the difference between
that and "numeral", "algarism", etc. 0 is "an algarism" but not a
number.
Algarisms: the symbols used in mathematical notation to describe
numbers (0, 1, 2, 3, 4, 5, 6, 7, 8, 9)
Numeral: The names of the numbers (one, uno, um, etc. -- all meaning
"1")
Numbers: The objects used in arithmetic for calculation (among other
things, of course).
0 is an algarism that we use to write the numbers ten, a hundred, a
thousand, etc. It is also the "neutral element" in addition and
subtraction