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My “HP” WP 34S calculator. A custom-built calculator made by Walter Bonin, Paul Dale and Marcus von Cube in the body of an HP 30b. : r/calculators
![Jonathan Watmough on Twitter: "Two WP-34s calculators #hpcalc #wp34s https://t.co/IAnD0pL3bx" / Twitter Jonathan Watmough on Twitter: "Two WP-34s calculators #hpcalc #wp34s https://t.co/IAnD0pL3bx" / Twitter](https://pbs.twimg.com/media/DSv5PpvX4AArNfs.jpg)
Jonathan Watmough on Twitter: "Two WP-34s calculators #hpcalc #wp34s https://t.co/IAnD0pL3bx" / Twitter
![My new WP34S just arrived. Finally I have the Zeta function hard-coded in a calculator : r/calculators My new WP34S just arrived. Finally I have the Zeta function hard-coded in a calculator : r/calculators](https://i.redd.it/vxl0j1nkewr51.jpg)