- #1
Leb
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Hi all!
Another questions which is due to the gaps in my calculus knowledge.
In these notes: http://people.hofstra.edu/Gregory_C_Levine/qft.pdf in the line above eq. (1) where it says that notation [itex]P[/itex] is now unecessary, is it because [itex]\partial{ (p+\delta p)} [/itex] is much smaller than [itex]p+\delta p[/itex] and most of the change will only happen in [itex]p[/itex] and hence the use of only [itex]\partial {p}[/itex] ?
I wish someone could explain the usage of these [itex]\delta x[/itex] and [itex]\partial {x}[/itex] when all of this "just the notation" argument is used... But I suppose this is too broad.
Another questions which is due to the gaps in my calculus knowledge.
In these notes: http://people.hofstra.edu/Gregory_C_Levine/qft.pdf in the line above eq. (1) where it says that notation [itex]P[/itex] is now unecessary, is it because [itex]\partial{ (p+\delta p)} [/itex] is much smaller than [itex]p+\delta p[/itex] and most of the change will only happen in [itex]p[/itex] and hence the use of only [itex]\partial {p}[/itex] ?
I wish someone could explain the usage of these [itex]\delta x[/itex] and [itex]\partial {x}[/itex] when all of this "just the notation" argument is used... But I suppose this is too broad.