My Sharp EL-W531 Calculator Started Giving Strange Results

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2026-11-10 14:53:30 -

I never expected a calculator to cause so much frustration, especially one that had been working perfectly for years. The problem started when I was helping a relative prepare some financial calculations for a small renovation project. We were using an old Sharp EL-W531 scientific calculator to check measurements, calculate percentages, and estimate material costs. At first, everything seemed...

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