Equation 3D models

(a+b)^2=a^2+2ab+b^2

Daily Equation #12 - Ellipse x^2/a + y^2/b = 1

Daily Equation #7 - |x^(5/3) + y^(5/3)| = a

Daily Equation #6 - Diamond, |x + y| = a

Daily Equation #3 - Spiral r = a*theta

Hyperbolic Paraboloid

Daily Equation #11 - y = sin(cos(x/7)+sin(x))*x

Wave Equation Sand Castle Mold

Daily Equation #2 - Astroid x^(2/3) + y^(2/3) = a

Daily Equation #8 - Circle - x^2 + y^2 = a

Daily Equation #1 - y = a*sin(b*x)

Daily Equation #4 - Normal Distribution y = e^(-x^2/2) / (2pi)^0.5