--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/IncompatibleMatrixError.st	Tue Aug 20 15:23:04 2019 +0200
@@ -0,0 +1,45 @@
+"{ Package: 'stx:libbasic2' }"
+
+"{ NameSpace: Smalltalk }"
+
+DomainError subclass:#IncompatibleMatrixError
+	instanceVariableNames:''
+	classVariableNames:''
+	poolDictionaries:''
+	category:'Kernel-Exceptions-Errors'
+!
+
+!IncompatibleMatrixError class methodsFor:'documentation'!
+
+documentation
+"
+    Raised by certain matrix functions when the receiver or arg
+    is not of the appropriate form (eg. non-square, where a square matrix is expected).
+"
+! !
+
+!IncompatibleMatrixError class methodsFor:'initialization'!
+
+initialize
+    NotifierString := 'incompatible matrix'.
+! !
+
+!IncompatibleMatrixError methodsFor:'defaults'!
+
+defaultResumeValue
+    "the default answer, if no one handles the query and the exception is resumed.
+     Re-redefined to return nil instead of NaN."
+
+    ^ nil
+
+    "Created: / 20-06-2017 / 12:02:19 / cg"
+! !
+
+!IncompatibleMatrixError class methodsFor:'documentation'!
+
+version_CVS
+    ^ '$Header$'
+! !
+
+
+IncompatibleMatrixError initialize!