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ID Category Severity Type Date Submitted Last Update
0000679 [1003.1(2013)/Issue7+TC1] Shell and Utilities Objection Omission 2013-04-19 16:09 2019-06-10 08:55
Reporter geoffclare View Status public  
Assigned To
Priority normal Resolution Accepted  
Status Closed  
Name Geoff Clare
Organization The Open Group
User Reference
Section bc
Page Number 2503
Line Number 80630
Interp Status ---
Final Accepted Text
Summary 0000679: bc's Bessel function description needs improvement
Description The bc description of j(expression, expression) is lacking some
important details. It doesn't say which way round the arguments are,
and it doesn't say whether it computes the Bessel function of the
first kind or second kind.

Checking a couple of different implementations, it appears that
bc's j(n,x) is equivalent to the C function jn(n,x). The suggested
new description is based on the description of jn() in XSH.
Desired Action Change:

    j( expression, expression )
        Bessel function of integer order.

to:

    j( expression1, expression2 )
        Bessel function of expression2 of the first kind of integer
        order expression1.
Tags tc2-2008
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- Issue History
Date Modified Username Field Change
2013-04-19 16:09 geoffclare New Issue
2013-04-19 16:09 geoffclare Name => Geoff Clare
2013-04-19 16:09 geoffclare Organization => The Open Group
2013-04-19 16:09 geoffclare Section => bc
2013-04-19 16:09 geoffclare Page Number => 2503
2013-04-19 16:09 geoffclare Line Number => 80630
2013-04-19 16:09 geoffclare Interp Status => ---
2013-04-25 16:04 Don Cragun Status New => Resolved
2013-04-25 16:04 Don Cragun Resolution Open => Accepted
2013-04-25 16:04 Don Cragun Tag Attached: tc2-2008
2019-06-10 08:55 agadmin Status Resolved => Closed


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