system variable holding numeric results from the command line

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I quite often use Igor's command line as a calculator by executing something like this

print 8.314*2000 * ln(0.3)


and almost equally often I want to do another calculation that uses the result of the previous calculation, which currently I need to enter manually.

A variable holding the last numeric result from a command executed on the command line, similar to "ans" in MatLab or "%" in Mathematica would be greatly appreciated.
I see your point. I don't know if Igor will ever have such a thing.

If you think ahead, you can use your own variable:

Variable res=8.314*2000 * ln(0.3);print res

Now use res in subsequent computations.

John Weeks
WaveMetrics, Inc.
support@wavemetrics.com

May 23, 2012 at 11:22 am - Permalink

johnweeks wrote:
I see your point. I don't know if Igor will ever have such a thing.


How about a print/C flag that "captures" the output to a variable V_print?

--> print/C 2*3
---- 6
--> print/C v_print*3
--- 18
--> print 5*5
--- 25
--> print v_print*2
--- 36

--
J. J. Weimer
Chemistry / Chemical & Materials Engineering, UAHuntsville

May 23, 2012 at 12:06 pm - Permalink

Unfortunately, Print/C is already reserved for printing numeric expressions as complex. /S, although obsolete, is also reserved.

May 24, 2012 at 04:20 am - Permalink

s.r.chinn wrote:
Unfortunately, Print/C is already reserved for printing numeric expressions as complex. /S, although obsolete, is also reserved.


Oh ... print/V (print to variable) is open!

--
J. J. Weimer
Chemistry / Chemical & Materials Engineering, UAHuntsville

May 24, 2012 at 05:52 am - Permalink