qalc(1) on Linux
The text 21d60b4d7121, as Debian 9 (Stretch), Debian 8 (Jessie), Debian 7 (Wheezy), Debian 6.0 (Squeeze), Debian 5.0 (Lenny), Debian 4.0 (Etch) shipped it.
Powerful and easy to use command line calculator
Flags it lists
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-u8