From mboxrd@z Thu Jan  1 00:00:00 1970
From: Uwe Brauer <oub@mat.ucm.es>
Subject: empty cells in columns should be left emtpy when manipulating
 columns
Date: Thu, 22 Jun 2017 07:25:24 +0000
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Please consider this

| 3.25 | 0.4875 |
|      |     0. |
| 2.25 | 0.3375 |
#+TBLFM: $2=$1*0.15

How can I avoid the entry 0.  ?

I could insert **

Giving

| 3.25 |  0.4875 |
|   ** |  #ERROR |
| 2.25 |  0.3375 |
#+TBLFM: $2=$1*0.15

But this is cumbersome, any other possibilities?

Thanks

Uwe Brauer