Interval package: Difference between revisions

Interval package (edit)

542 bytes added , 1 June 2016

240

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 ** To be considered in the future: Algorithms can be migrated from the C-XSC Toolbox (C++ code) from [http://www2.math.uni-wuppertal.de/wrswt/xsc/cxsc_new.html] (nlinsys.cpp and cpzero.cpp), however these would need gradient arithmetic and complex arithmetic.
 ** Interval version of <code>interp1</code>
+** The [http://capd.ii.uj.edu.pl/ CAPD package] contains an algorithm for QR factorization. Analyze. Migrate.
+** Extend <code>subsasgn</code> to allow direct manipulation of inf and sup properties.
+ >> A = infsup ("[2, 4]");
+ >> A.inf = infsup ("[1, 3]")
+ A = [1, 4]
+ >> A.inf = 5
+ A = [Empty]
+** While at it, also allow multiple subscripts in <code>subsasgn</code>
+ >> A(:)(2:4)(2) = 42; # equivalent to A(3) = 42
+ >> A.inf(3) = 42; # also  A(3).inf = 42
+ >> A.inf.inf = 42 # should produce error?
+ >> A.inf.sup = 42 # should produce error?
 == Compatibility ==