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User Guide

Overview


You can use the Pattern-Making Calculator to perform standard operations for which you would normally use a handheld calculator. This calculator performs basic arithmetic, such as addition, subtraction, multiplication, and division.

To Perform a simple calculation.

  1. Type the first number in the calculation.
  2. Click operator button ( +, -, :, or x).
  3. Type the next number in the calculation.
  4. Click =.

To switch between Unit of Measurement (CM or Inch)

To convert to other unit of measurement, select the target unit. 1 INCH = 2.54 CM

Select Unit of Measurement

To Type In a Fractional Number

Decimal Fraction: e.g. 5.5

Simple Fraction: e.g. 5.5

Radius From Inner Circle

To calculate radius of a full, 3/4, half, or quarter circle, type in the length of the perimeter and press one of these buttons.

Radius From Full Inner Circle
Radius = 0.5 x Perimeter/PI

Radius From Three-Quarter Inner Circle
Radius = 2/3 x Perimeter/PI

Radius From Half Inner Circle
Radius = Perimeter/PI

Radius From Quarter Inner Circle
Radius = 2 x Perimeter/PI


Using keyboard equivalents of Calculator buttons

The following is an alphabetical list of Calculator buttons and their keyboard equivalents.

Button

Key

Button

Key

% (percent)

%

Back

Backspace

x (multiplication)

*

C (Clear All)

Esc

+ (addition)

+

CE (Clear Entry)

Del

+/- (reverse sign)

+/-

M+ (Add to Stored Number)

Ctrl-A

- (substraction)

-

M- (Substract from Stored Number)

Ctrl-S

. (decimal point)

. or ,

MC (Clear Stored Number)

Ctrl-C

: (division)

/

MR (Recall Stored Number)

Ctrl-R

0-9 (digit)

0-9

PI (Constant PI)

p

1/x (inverse)

i

Sqrt (Square-Root)

q

=

= or [Enter]