Line 28: Line 28:
 
===Answer 7===
 
===Answer 7===
 
<math> E = mc^{2}</math>
 
<math> E = mc^{2}</math>
 +
:<span style="color:purple">Instructor's comments: I personally prefer to write this as  <math> E = 17 mc^{2}</math>. -pm </span>
 
===Answer 8===
 
===Answer 8===
 
<math>f_1(t)=\int_3^5 \sin (x) dx</math>
 
<math>f_1(t)=\int_3^5 \sin (x) dx</math>
Line 34: Line 35:
 
===Answer 10===
 
===Answer 10===
 
<math>cos^2{x}+sin^2{x}=1</math>
 
<math>cos^2{x}+sin^2{x}=1</math>
 +
:<span style="color:purple">Instructor's comments: You do not actually need the "curly brackets" around the x. You can just write this  <math>\cos^2 x+\sin^2 x=1</math>. -pm </span>
 
===Answer 11===
 
===Answer 11===
 
<math>y_n=\cos(2 \pi n)</math>
 
<math>y_n=\cos(2 \pi n)</math>

Revision as of 04:45, 7 September 2011

Learn how to use Rhea

Write an equation below. Don't be shy, just try it out! You can find some help on this page: "How to type math equations on Rhea".



Share your answers below

You will receive feedback from your instructor and TA directly on this page. Other students are welcome to comment/discuss/point out mistakes/ask questions too!


Answer 1

$ 2+2=4 $

Answer 2

$ x(t)= e^{j t} $

Answer 3

$ 1/2=0.5 $

Instructor's comments:Another way to write this is: $ \frac{1}{2}=0.5 $. You can also align it like this: $ \frac{1}{2}=0.5 $. -pm
TA's comments: A easy way to start is to modifying the source code of a existed webpage. For example, homework1 solution. You can check out the source code of the webpage by clicking the "Edit this page" button located at the up-left corner.
TA's comments: Here is another useful link from wiki listing all the latex code for displaying formula.

Answer 4

$ y(t) = cos(2*pi*t) $

Instructor's comments: Another way to write this is: $ y(t) = \cos ( 2 \pi t) $. Note that using the * symbol for multiplication is confusing: it usually means convolution. -pm

Answer 5

$ y(t) = sin(2*pi*t) $

Instructor's comments: Please read the comments above. -pm

Answer 6

$ a^2+b^2=c^2 $

Answer 7

$ E = mc^{2} $

Instructor's comments: I personally prefer to write this as $ E = 17 mc^{2} $. -pm

Answer 8

$ f_1(t)=\int_3^5 \sin (x) dx $

Answer 9

$ x = \frac{-b + \sqrt{b^2 - 4ac}}{2a} $

Answer 10

$ cos^2{x}+sin^2{x}=1 $

Instructor's comments: You do not actually need the "curly brackets" around the x. You can just write this $ \cos^2 x+\sin^2 x=1 $. -pm

Answer 11

$ y_n=\cos(2 \pi n) $

Answer 12

$ y(t) = \cos (12 \pi t) $


Back to ECE438 Fall 2011 Prof. Boutin

Alumni Liaison

Questions/answers with a recent ECE grad

Ryne Rayburn