WebWork Guide
WebWork Guide
Units
Every number deserves a unit. Every time you write or enter a number you should think about the unit of the number. There are some cases (radians, cycles, etc.) where we consider the numbers unitless but you should still think about those cases.
WebWork will require you to enter units for most answers. The units I use in this class are summarized here.
Unit  Symbol  WebWork Abbreviation 

degrees  °  deg 
radians  rad  
Amperes  A  A 
Volts  V  V 
Ohms  Ω  ohm 
Hertz  Hz  Hz 
seconds  s  s 
minutes  min  min 
Coulombs  C  C 
Farad  F  F 
Joules  J  J 
Watts  W  W 
Exponential Notation
Unfortunately WebWork does not accept all SI prefixes. Therefore, all numbers should be entered using exponential notation. A table below has a number of examples.
Value  WebWork Entry 

45°  45 deg 
1.25mA  1.25E3A 
5kJ  5E3 J 
1.1pF  1.1E12F 
Functions
Description  WebWork Symbol 

Add  + 
Subtract   
Multiply  * 
Divide  / 
Natural Exponential  exp() 
Sine  sin() 
Cosine  cos() 
Timedomain
Value  WebWork Entry 

6cos(1500t45°)  6*cos(1500*t(pi/4))

12cos(700t+50°)  12*cos(700*t+50*(pi/180))
