To compute sinh(x) with a basic calculator:
Make sure your calculator can perform exponentiation. If not, search for an online exponentiation calculator (or go straight to an online sinh calculator).
Compute exp(x) and store the result (write it down or use the memory of your calculator).
Compute exp(-x) and store the result.
Compute exp(x) - exp(-x).
Divide the result by 2. That's it; well done!
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