filetext = fileread('g.m'); filetext(find(filetext == '%', 1, 'last') : end) = []; assert(isempty(strfind(filetext, '*')), 'Multiplication is forbidden.') assert(isempty(strfind(filetext, 'prod')), 'Multiplication is forbidden.') assert(isempty(strfind(filetext, 'times')), 'Multiplication is forbidden.') assert(isempty(strfind(filetext, 'cumprod')), 'Multiplication is forbidden.') assert(isempty(strfind(filetext, 'mtimes')), 'Multiplication is forbidden.') assert(isempty(strfind(filetext, 'dot')), 'Multiplication is forbidden.') assert(isempty(strfind(filetext, 'cross')), 'Multiplication is forbidden.') assert(isempty(strfind(filetext, 'mldivide')), 'Division is forbidden.') assert(isempty(strfind(filetext, '\')), 'Division is forbidden.') assert(isempty(strfind(filetext, 'mrdivide')), 'Division is forbidden.') assert(isempty(strfind(filetext, '/')), 'Division is forbidden.') assert(isempty(strfind(filetext, '+')), 'Addition is forbidden.') assert(isempty(strfind(filetext, 'add')), 'Addition is forbidden.') assert(isempty(strfind(filetext, 'sum')), 'Addition is forbidden.') assert(isempty(strfind(filetext, 'plus')), 'Addition is forbidden.') assert(isempty(strfind(filetext, 'mean')), 'Addition is forbidden.') assert(isempty(strfind(filetext, '-')), 'Subtraction is forbidden.') assert(isempty(strfind(filetext, 'minus')), 'Subtraction is forbidden.') assert(isempty(strfind(filetext, 'diff')), 'Subtraction is forbidden.') assert(isempty(strfind(filetext, '^')), 'Exponeniation is forbidden.'); assert(isempty(strfind(filetext, 'exp')), 'Exponeniation is forbidden.'); assert(isempty(strfind(filetext, 'log')), 'logarithms are forbidden.'); assert(isempty(strfind(filetext, 'conv')), 'Convolution is forbidden.') assert(isempty(strfind(filetext, 'corr')), 'Correlation is forbidden.') assert(isempty(strfind(filetext, 'cov')), 'Covariance is forbidden.') assert(isempty(strfind(filetext, 'std')), 'Variance is forbidden.') assert(isempty(strfind(filetext, 'var')), 'Variance is forbidden.') assert(isempty(strfind(filetext, 'filter')), 'Filter is forbidden.') assert(isempty(strfind(filetext, '''')), 'String is forbidden.') assert(isempty(strfind(filetext, '"')), 'String is forbidden.') assert(isempty(strfind(filetext, 'str')), 'String is forbidden.') assert(isempty(strfind(filetext, '2')), 'Conversion is forbidden.'); assert(isempty(strfind(filetext(2 : end), 'f')), 'File handling and figures are forbidden.'); assert(isempty(strfind(filetext, '>')), 'File handling is forbidden.'); assert(isempty(strfind(filetext, 'e')), 'Eval is forbidden.'); assert(isempty(strfind(filetext, '!')), 'Shell commands are forbidden.'); assert(isempty(strfind(filetext, 'system')), 'Shell commands are forbidden.'); assert(isempty(strfind(filetext, 'command')), 'Shell commands are forbidden.'); assert(isempty(strfind(filetext, 'mlock')), 'mlock is forbidden.'); assert(isempty(strfind(filetext, 'munlock')), 'munlock is forbidden.'); assert(isempty(strfind(filetext, 'pcode')), 'pcode is forbidden.'); assert(isempty(strfind(filetext, 'rehash')), 'rehash is forbidden.'); assert(isempty(strfind(filetext, 'path')), 'path is forbidden.'); assert(isempty(strfind(filetext, 'set')), 'set* is forbidden.'); assert(isempty(strfind(filetext, '@')), 'Anonymous functions are forbidden.');

assert(isequal(g(1, 1), 2))

assert(isequal(g(-10, 0), -10))

assert(isequal(g(987654, 654321), 1641975))

assert(isequal(g(3.1, -3.1), 0))

assert(isequal(g(1 + i, i - 1), 2*i))