# Calculation Edit Boxes

Numerical edit boxes generally support simple calculations.
A sum can be entered directly into the edit box: Having typed an equation, pressing the = key will perform the entered calculation and fill the edit box with the answer.

### Special Calculation Characters

As well as the simple numerical calculations, such as 3+(4/5), several of VCarve Pro's stored values can be accessed by using certain letters (which are not case-sensitive): When used, VCarve Pro substitutes the character with the appropriate value in the calculation.

Character

Name

Example

Description

W or X

Material Width

w/2=

Half of the material width

H or Y

Material Height

H*2=

Twice the height of the material

T or Z

Material Thickness

t-0.25=

0.25 units less than the material thickness

P

PI (3.141593)

P*10^2=

Area of a 10 radius circle (π.r2)

I

Imperial Conversion

25.4*i=

Converts 25.4mm to inches

M

Metric Conversion

2*M=

Converts 2 inches to millimetres

'

Feet

2'+10=

34 inches (2 feet and 10 inches)