Calculated Industries 4087 User Manual - — 13

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Angle (θ) — Enters or calculates an Angle, 

providing the Adjacent Angle for both instances. 

Calculates an Angle given two other right-

triangle values. Also enters the Starting Angle 

of the first hole of a Bolt Pattern, with 0° being 

the three o’clock position and the rotation going 

counterclockwise.

SETTINg FracTIONal rESOluTIONS

The Machinist Calc Pro is set to display fractional answers in 

64ths of an Inch. All examples in this User’s Guide are based 

on 1/64". However, you may select Fractional Resolution to 

be displayed in other formats (e.g., 1/16", 1/32", etc.). The 

methods for permanently and temporarily changing Fractional 

Resolution are shown in the following sections.

Permanently Set fractional Resolution

To permanently set the Fractional Resolution, you must be in 

Preference Setting mode. 

KeySTROKe

DISPLAy

1. Access Preference Settings:

g S

(Prefs)

fRAC  0-1/64 

INCH

*

2. Toggle through available Fractional Resolutions:

+

fRAC  0-1/2 

INCH

+

fRAC  0-1/4 

INCH

+

fRAC  0-1/8 

INCH

+

fRAC  0-1/16 

INCH

+

fRAC 0-1/32 

INCH

+

 (repeats options)

fRAC  0-1/64 

INCH

(cont’d)