Display of big real number without the default powers of base ten?

Questions
1

Hi,

I’m new to Mathematica.
Is it possible define some settings in Mathematica so as big real number would be displayed automatically like

2380570.51

instead of

2.380570x10^6

Thanks for help

2

Perhaps this will get you part of the way to where you want to go

In[1]:= 2380570.51

Out[1]= 2.38057*10^6

In[2]:= $PrePrint = AccountingForm[#, NumberSigns->{"-",""}]&;

In[3]:= 2380570.51

Out[3]= 2380571.

In[4]:= 10^21

Out[4]= 1000000000000000000000

That removes the scientific notation on output, but does not deal with the issue of how many digits should be displayed when the number includes a decimal point because that is a much more involved subject.

You can turn this back off with this

In[5]:= $PrePrint =.

In[6]:= 2380570.51

Out[6]= 2.38057*10^6

Please be careful with this. Any time you get close to violating one of the fundamental principles of an organized body of knowledge you then run the risk of unexpected consequences.

3

AccountingForm accepts Infinity as the second argument:

AccountingForm[2380570.51, Infinity, NumberSigns -> {"-", ""}]

2380570.51