Clara Castro
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- Apr 7, 2021
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SCWARZ inequality
- Thread starter Clara Castro
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Clara Castro
New member
- Joined
- Apr 7, 2021
- Messages
- 2
Oh Sure!
sorry, I am new here.
Well, mainly cannot understand how can I get the x1x2 + y1y2 <= |z1||z2| from (x1x2 - x2y1)^2 >= 0.
First I found the expression (x1y2 x2y1)^2 >= 0 from (x1x2 + y1y2)^2 <= |z1|2|z2|2 . But I dont know how to get the x1x2 + y1y2 <= |z1||z2| expression.
sorry, I am new here.
Well, mainly cannot understand how can I get the x1x2 + y1y2 <= |z1||z2| from (x1x2 - x2y1)^2 >= 0.
First I found the expression (x1y2 x2y1)^2 >= 0 from (x1x2 + y1y2)^2 <= |z1|2|z2|2 . But I dont know how to get the x1x2 + y1y2 <= |z1||z2| expression.