Allow vector/matrix tolerance and improve error messages for assert.m script * assert.m (assert): Document non-scalar tolerance option. Remove FIXME about format of output. Remove 'coda' and 'iserror' spanning whole routine. Use structure 'err.index/expected/observed/reason' to keep track of multiple results and recursions. Add persistent variables 'errmsg', 'assert_call_depth' and 'assert_error_occurred' to allow recursions and print only when all complete. Place output formating in pprint() function. Construct vector tolerance from scalar tolerance. Add test illustrating recursions and multiple tables. Add test illustrating variable tolerance. Add test illustrating multidimensional matrices. Remove looping for constructing error information. Add thorough tests for exceptional values by checking both real and imaginary. Place zeros where exceptional values exist in real and imaginary parts of the two matrices. Add tests illustrating exceptional values in real and/or imaginary part and numerical mismatch in the other part. (construct_indeces): Format linear indexing as tuple indexing, vectors (#), scalars (). (pprint): Sub function to format and print input command, index of failure, expected and observed values at failure, and the reason for failure.

gnulib-hg = gnulib-hg