[Octave-bug-tracker] [bug #48013] Java integration: conversion to double

[Ernst Reissner]

Follow-up Comment #27, bug #48013 (project octave):

Dear Philip, 
could you tell me where the failure in my thoughts is located? 
I was sure to have found out, 
that matlab does automatic conversion on primitive number types 
and their wrappers, 
but not on general java.lang.Number's. 
So in particular not on java.math.BigDecimal. 
If you want so see double here, 
you definitely have to apply BigDecimal.doubleValue() 
which is right what function double(.) does. 
You can do it directly or via double(.). 

I doubt the 'very fact... that Matlab does not need manual conversion here. '


Do you have a Matlab at hand? I tried to find out from the documentation. 

I would like to point you to: 
 
http://uk.mathworks.com/help/matlab/matlab_external/handling-data-returned-from-a-java-method.html


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