---verbatim--start---- octave:7> x=-10:0.1:10; octave:8> plot(x,sin(x)+sin(x+4*sin(x))); octave:9> plot(x,sin(x)+sin(x*4*sin(x))); error: operator *: nonconformant arguments (op1 is 1x201, op2 is 1x201) error: evaluating argument list element number 1 error: evaluating argument list element number 2 octave:9> ---verbatim--end------