Manual

User's Guide — 67
Common Rafter Length — Pitch Unknown
Find the Common rafter length for a roof with a rise of 6 feet 11-1/2
inches and a run of 14 feet 6 inches. Solve for the pitch in inches and
degrees.
Keystroke Display
Find diagonal and pitch:
[On/C] [On/C] 0.
[Conv] [1]* 0.
6 [Feet] 11 [Inch] 1 [ / ] 2 [Rise] RISE 6 FEET 11-1/2 INCH
14 [Feet] 6 [Inch] [Run] RUN 14 FEET 6 INCH
[Diag] DIAG 16 FEET 1 INCH
[Pitch] PTCH 25.64°
[Pitch] PTCH 5-3/4 INCH
*Optional keystroke, which temporarily sets the fractional accuracy
to one-sixteenth (over-riding the Trig Plus III's default 1/64 setting).
Angle and Diagonal (Hypotenuse)
Find the diagonal (hypotenuse) and degree of angle of a right triangle
that is 9 feet high and 12 feet long.
Keystroke Display
1. Enter rise and run:
[On/C] [On/C] 0.
9 [Feet] [Rise] RISE 9 FEET 0 INCH
12 [Feet] [Run] RUN 12 FEET 0 INCH
2. Solve for diagonal/hypotenuse and degree of angle:
[Diag] DIAG 15 FEET 0 INCH
[Pitch] PTCH 36.87°
[Pitch] PTCH 9 INCH