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A comment on Learning algebra in my 60s. Parent comment

Re:Learning algebra in my 60s by 2OEH8eoCRo0 on Monday August 08, 2022 @08:42AM (#32384756)
One of my friends in HS was against calculators, and also very stubborn, and got in trouble for asking how to do sin, cos, tan functions without a calculator.
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Re:Learning algebra in my 60s by nobodywasishere on Monday August 08, 2022 @08:56AM (#32384857)
Good old taylor series, of course!
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Re:Learning algebra in my 60s by WalterBright on Monday August 08, 2022 @09:58AM (#32385439)
That's certainly the hard way!

There are shortcut formulas, and before calculators a lot of calculations were done using drafting equipment.

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Re:Learning algebra in my 60s by reacweb on Monday August 08, 2022 @09:08AM (#32384945)
Sine Tables Charts is easier if you can bring them to exam.
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Re:Learning algebra in my 60s by hgomersall on Monday August 08, 2022 @03:30PM (#32389938)
Just read off the axis on a unit circle. If you need more precision, draw a bigger circle.
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