New test cases taken from DWO (Vwo B H1), including: - modulus - sqrt equations - broken equations 
New test cases taken from DWO (Vwo B H1), including:
- modulus
- sqrt equations
- broken equations 


git-svn-id: bcf1007ea3ea39647a31cb6b6eab17d5210c51ee@2009 d9a34ac6-6904-0410-8848-93d71bbb9804

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