POCKET REFERENCE GUIDE — 10
Column/Cone Key
Ç )
Column/Cone
—
Calculates volume and
surface area of column or
cone upon consecutive
presses of ) following Ç
Right Triangle/Roof Framing Keys
p
(Theta)
Enters/calculates the
pitch/slope (amount of
“Rise” over 12” of “Run”)
R
(Run)
Enters or calculates the
horizontal leg of a right
triangle
r
(Rise)
Enters or calculates the
vertical leg of a right
triangle
d
(Diag)
Enters or calculates the
diagonal leg/hypotenuse,
or Common rafter length
H Calculates length of the
regular or irregular
Hip/Valley rafter
Ç H Enters irregular pitch used
to calculate lengths of the
irregular Hip/Valley and
Jack rafters
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