Abstract. Tabular expressions have been successfully used in developing safety critical systems, however insufficient tool support has hampered their wider adoption. To address this shortfall we have developed the Tabular Expression Toolbox for Matlab/Simulink1 . An intuitive user interface allows users to easily create, modify and check the completeness and disjointness of tabular expressions using the ATP PVS or SMT solver CVC3. The tabular expressions are translated to m-functions allowing their seamless use with Matlab’s simulation and code generation.