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Topic: How to remove the "0." from "0. + 1.41774i"
Replies: 8   Last Post: Jun 23, 2013 10:50 PM

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 Simons, F.H. Posts: 107 Registered: 12/7/04
Re: How to remove the "0." from "0. + 1.41774i" [Revised]
Posted: Jun 23, 2013 10:50 PM

Want you want to do can be achieved by changing the way Mathematica
prints complex numbers, for example in the following way:

In[1]:= 0.+4.23I
4.23+0. I
3.5+4.2 I

Out[1]= 0. +4.23 I
Out[2]= 4.23 +0. I
Out[3]= 3.5 +4.2 I

In[4]:= MakeBoxes[Complex[a_ /; Chop[a]==0., b_] , StandardForm] :=
RowBox[{MakeBoxes[b, StandardForm]," ", MakeBoxes[I,StandardForm]}];

MakeBoxes[Complex[a_ , b_/;Chop[b]==0] , StandardForm] := MakeBoxes[a,
StandardForm];

In[6]:= 0.+4.23I
4.23+0. I
3.5+4.2 I

Out[6]= 4.23 I
Out[7]= 4.23
Out[8]= 3.5 +4.2 I

Be careful; there might be side effects.

Fred Simons
Eindhoven University of Technology

Date Subject Author
6/20/13 Mike Bayville
6/21/13 Nasser Abbasi
6/21/13 Mike Bayville
6/21/13 cj.girlie@gmail.com
6/21/13 Bill Rowe
6/22/13 Murray Eisenberg
6/23/13 Simons, F.H.