Multiplication: *
Division: /
Addition: +
Subtraction/Negative numbers: -
Equality: =
Power: ^
Grouping: Parentheses: ( )
DP-Graph requires that explicitly state all multiplications and functions. For example, to enter the equation "y=xsinx", you would need to enter "y=x*sin(x)"
For implicit graphs, enter any equation in terms of the appropriate variables. The equation does not have to be a "y=" or "z=" type equation.
Examples:
2D: y=sin(x), x^2+y^2=4
2D polar: r = theta, r*sin(theta)=1
(note: DP-Graph can also handle equations that mix polar and rectangular coordinates, like x=theta)
3D: 2*x+y+3*z = 5, z = x^2 + y^2
3D cylindrical: z = r*theta
3D spherical: rho + theta = phi/rho
When entering parametric equations, use u and v as the independent variables. For 1 variable parametrics (spacecurves or 2D parametric equations) just use u. In this front-end, enter expressions, NOT equations, in the boxes provided.