Decimal approximation for pi on a seven-segment display.
Calculators are one of the most prominent and continued use of 7-segment displays since they only need a line of usually at least eight decimal digits, each amended with an eighth segment for the decimal point, which is commonly labeled dp. Hexadecimal digits may also be supported easily.
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More advanced, scientific calculators may sport several lines and other math symbols. Most therefore use a dot matrix display instead.
