Plot Bell Curve ... y = ce– kxn
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 and curve parallel or equidistant at all points to Bell Curve

Bell Curve sheared through 30° Main Roof Slope
Bell Curve projected to surface of Main Roof

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

Bell Curve designed to pass through Three Points
The right hand side of this graph was plotted using the
WZ Function Grapher created by Walter Zorn
Typical Bell Curve and curve equidistant at all points
Bell Curve Formulas

Joe Bartok