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What was the first calculator with R-P and P-R keys?
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What was the first calculator with R-P and P-R keys?
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What was the first calculator with R-P and P-R keys?
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04-22-2022, 08:23 AM
Post: #1
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What was the first calculator with R-P and P-R keys?
Long time no visit.
I'm doing video on complex numbers and wondered what was the first calulator (any brand) that had R-P and P-R keys for complex number format conversion? I included an image of an original Casio FX-82, but there has to be eariler ones. Thanks. Dave. |
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What was the first calculator with R-P and P-R keys? - EEVblog - 04-22-2022 08:23 AM
RE: What was the first calculator with R-P and P-R keys? - Didier Lachieze - 04-22-2022, 08:36 AM
RE: What was the first calculator with R-P and P-R keys? - EEVblog - 04-22-2022, 08:49 AM
RE: What was the first calculator with R-P and P-R keys? - pavel nemec cz - 04-23-2022, 06:40 AM
RE: What was the first calculator with R-P and P-R keys? - EdS2 - 04-22-2022, 02:15 PM
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