Compact Scientific Calculator 45 follows classical approach when uncertainty of f(x) calculation is estimated by formula max| (derivative (f))|*|x*uncertainty(x)|, where maximum of function derivative is considered on interval [x-uncertainty(x), x+uncertainty(x)]. Thus sin (2*pi) =0+-1E-54 and sin (2*1E20*pi) =0+-1E-34.
Limitations:
10-day trial
10 Jan 17
12 Jul 15
22 Jan 15
29 Oct 15
23 Jan 15
15 Apr 15
11 Apr 15
27 Jan 15
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