Plot Bell Curve ...y = ce^{– kx}n Plot parallel curve inside Bell Curve

Enter only postive values of x

Coefficient of e ... c =
Coefficient of x ... – k =
Exponent of x ... n =
distance from Bell Curve ... d =
Station on x-axis =

Height ... y =
Tangent ... m =
Normal ... – 1/m =
Normal Angle ... θ =
Arc Length (Pythagorean) ... s =
Arc Length (Simpson's) ... s =
Parallel Curve ... x =
Parallel Curve ... y =
Parallel Curve ... x'-intersect =
x on Bell Curve ... x' + dcosθ =

Two Point Bell Curve Calculator

Enter postive values

Height (y) at x = 0 ... c =
½ Width ... x =
Height at ½ Width ... y =
Exponent of x ... n =

Coefficient of x ... – k =

Three Point Bell Curve Calculator

Enter postive values

Height (y) at x = 0 ... c =
0 < xi < x ... xi =
c > yi > y ... yi =
½ Width ... x =
Height at ½ Width ... y =

Coefficient of x ... – k =
Exponent of x ... n =

Two Point Bell Curve

Bell Curve sheared through 30° Main Roof Slope

Eyebrow Dormer with level ridge line
3D Model based on Bell Curve

Bell Curve designed to pass through Three Points The right hand side of this graph was plotted using the WZ Function Graphercreated by Walter Zorn