V or I written with ^ or -

Thread Starter

norstudent

Joined Feb 26, 2014
26
Hi

What do the ^ on top of V/E or I mean and what does the straight line above them mean?

For example Î and.. (I cant type the others, you probably know what I mean)

Please clarify!
 

Papabravo

Joined Feb 24, 2006
21,159
The circumflex (^) can mean that the quantity is a vector.
The horizontal bar above a capital letter can mean either the logical complement as in "NOT V" or it can also mean the average or mean value. Can you give us some context?
 

WBahn

Joined Mar 31, 2012
29,979
The ^ is also often used for the "expectation value", so if you had a problem that was dealing with a measured or actual value in comparison to a calculated value, you might see it used that way.

But I agree with the others that it is probably indicating that it is a phasor, possibly a unit vector.

It would help if you could scan a bit of text or a diagram that uses them both so that we have some good context to consider.
 

LvW

Joined Jun 13, 2013
1,752
My old professor used to use the ^ to mean the peak value, and the straight line to mean the average (mean) or DC value.
Not only "old" professors.
Yes - for my opinion and according to my knowledge (and education in Germany) this sign indicates PEAK values.
 
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