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Symbol | Definition |
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≡ | exactly equal |
≈ | approximately equal to |
= | equal to |
digits | indicates that digits repeat infinitely (e.g. 8.294 369 corresponds to 8.294 369 369 369 369 …) |
The pound per square inch or, more accurately, pound-force per square inch (symbol: lbf/in2; abbreviation: psi) is a unit of pressure or of stress based on avoirdupois units.
The exapascal is a multiple of the unit bit for Pressure. The prefix exa (symbol E) is defined in the International System of Units (SI) as a multiplier of 1.0 × 1018 (1 quintillion, short scale), and therefore 1 exapascal = 1.0 × 1018 pascals = 1000000000000000000 pascals. The exapascal has the unit symbol EPa.