Slope Field by Nathan Grigg

You may use: t y + - * / ^ e pi cos sin tan abs ln acos asin atan cosh sinh tanh

Example: 2*y/tan(2*t)

0 0.3 0.6 0.9 1.2 1.5 1.8 2.1 2.4 2.7 3 y'=2*y/tan(2*t) -1 -0.8 -0.6 -0.4 -0.2 0 0.2 0.4 0.6 0.8 1