A screen

A screen is 1680 x 1050 pixels. What are the coordinates (and size in pixels) of an centered area which is exactly 33% of the screen size?

Correct result:

a =  965
b =  603
x0 =  357
y0 =  223
x1 =  2037.4567
y1 =  223.4105
x2 =  2037.4567
y2 =  1273.4105
x3 =  357.4567
y3 =  1273.4105

Solution:

w=1680 h=1050  p=33%=33100=0.33  a=w p=1680 0.33=168 33=965
b=h p=1050 0.33=105 33=603
x0=w/2a/2=1680/2965.0865/2=357
y0=h/2b/2=1050/2603.1791/2=223
x1=x0+w=357.4567+1680=2037.4567
y1=y0=223.4105
x2=x0+w=357.4567+1680=2037.4567
y2=y0+h=223.4105+1050=1273.4105
x3=x0=357.4567
y3=y2=1273.4105



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