Vingåker is a municipality in central Sweden, in the county of Södermanland. The municipality covers an area of 370.1 km². Of the total population of 9186, 4610 are male, and 4576 are female. The population density of the community is 25 inhabitants per km².
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The symbol
<math>\pm \sqrt {b^2-4ac}</math>
in the formula should be understood as "either of those element(s) of the field whose ...