Don_Dickle@lemmy.world to

Today I Learned@lemmy.worldEnglish · 3 months ago

TIL The first commercial graphing calculator was introduced by Casio in 1985 for $75. By 1986 it had been adopted by a program in Ohio schools, and other states soon followed

americanhistory.si.edu

73

TIL The first commercial graphing calculator was introduced by Casio in 1985 for $75. By 1986 it had been adopted by a program in Ohio schools, and other states soon followed

americanhistory.si.edu

Don_Dickle@lemmy.world to

Today I Learned@lemmy.worldEnglish · 3 months ago

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3 months ago
Yeah before that I heard they were using trumpets to do their math

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