on a flat rectangular surface

Decimal digits in numbers *are separated by a dot*. For example *4.5* (~~4,5~~)

Zero values (~~0~~, ~~0.0~~, ~~.0~~)are not entered. *Zero is replaced by * a small number. For example *0.0000000001*

Written by Kopanytsia Y.

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On-line hydraulics calculations We are from Ukraine