CTS-D, Math Formulas

Task-Light Levels Formula

* Ensure variables are all in metric or U.S. customary units.

Order of Operations

1. Any numbers within a pair of parentheses or brackets 2. Any exponents, indices, or orders 3. Any multiplication or division 4. Any addition or subtraction - If multiple operations of same priority proceed from left to right

Series/Parallel Circuit Impedance Formula

1. Utilize Series Circuit Impedance Formula for each branch. 2. Then utilize Parallel Circuit Impedance Formula for the system's total impedance.

Heat Load Formula

3.41 is Actual Conversion Factor

Power Amplifier Heat Load

3.41 is Actual Conversion Factor

Percent Element Height Formula

EH/IH=%EH - EH = Element Height - IH = Image Height - %EH = Percent Element Height

Text Height Formula (Element Height)

EH=FV/200 - EH = Element Height - FV = Farthest Viewer

Farthest Viewer Formula (Given Element Height)

FV=200xEH - FV = Farthest Viewer - EH = Element Height

Image Offset Formula (Basic Decision Making)

Image Offset=Distance from Floor to Bottom of Display - Eye Height (Standard Eye Height Seated, 48") (Standard Eye Height Standing, 62")

Rounding Rule

Only round at the final result, if possible

Camera Shot Width Formula

Shot Width=2*[D*tab(angle/2)] - D = Distance from Camera to Subject - angle = camera width angle

Character Height Formula

Text Height x 150 = Maximum Distance from the Screen