evstr evaluation of expressions H = evstr(Z) [H, ierr] = evstr(Z) Z a matrix of character strings M or list(M,Subexp) M a matrix of character strings. Subexp a vector of character strings. H a matrix. ierr an integer, error indicator. Returns the result of the evaluation of the matrix of character strings M. Each element of the matrix must define a valid Scilab expression. If the evaluation of M expression leads to an error, the single return value version, H = evstr(M), raises the error as usual. The two return values version, [H,ierr] = evstr(M), on the other hand, produces no error, but returns the error number in ierr. If Z is a list, Subexp is a vector of character strings, that defines subexpressions which are evaluated before evaluating M. These subexpressions must be referred to as %(k) in M, where k is the subexpression's index in Subexp. evstr('a = 1') is not valid (use execstr instead). Nan, NaN will be interpreted as %nan. Inf will be interpreted as %inf. Note that Z should not be composed of continuation marks (..). a = 1; b = 2; Z = ['a', 'b'] ; evstr(Z) Z = list(['%(1)','%(1)-%(2)'],['a+1','b+1']); evstr(Z) evstr('NaN'), evstr('Inf') //The two return values version [H, ierr] = evstr(Z) // no error Z = ['a', 'b', 'c'] ;// the variable c is undefined [H, ierr] = evstr(Z) // error 4: Undefined variable: c execstr