online_common:   Calculation of the area common to all four inscribed quadrants in a square

INPUT DATA:

Select:    

Side of the square L:    

 
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OUTPUT:

Area of the square
A:  
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Area common to all four quadrants
Ac :  
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  Your request was processed at  10:44:41 pm on April 3rd, 2025   [ 250403  22:44:41 ].