plot2d( [sinh(x), cosh(x), tanh(x)], [x, -2,2] )
taylor( exp(x), x, 0, 5 ); taylor( cos(x), x, 0, 5 ); taylor( sin(x), x, 0, 5 ); taylor( cosh(x), x, 0, 5 ); taylor( sinh(x), x, 0, 5 ); taylor( tanh(x), x, 0, 5 );
diff( exp(x), x ); diff( cos(x), x ); diff( sin(x), x ); diff( cosh(x), x ); diff( sinh(x), x ); diff( tanh(x), x );