After solving a equation with one unknown on 'Calc' mode in Casio fx 991ex (using shift+calc), the equation that just have been entered disappears after doing another calculation. Is there any way
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Hello, I'm studying mechanical engineer and can't solve polynomial with complex roots. Fx-991ex : r/calculators
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I keep getting syntax error after pressing =. What am I doing wrong. I'm trying to use the solve function. : r/calculators
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