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Which scientific calculator is better for mechanical engineers, a Casio FX-991ES, a Texas instruments TI-36 X or a Casio FX115 ES? - Quora
What is the difference between a Casio FX-85GTX and FX-991EX? Does it matter for high school? - Quora
What is the difference between a Casio FX-85GTX and FX-991EX? Does it matter for high school? - Quora
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