Terrible computations involving eulers number

Question:Terrible computations involving eulers number

Posted: mschneider 60 Product: Maple

September 09 2019

Please help...

answer := 5*exp(7.5*t);

response := subs(a = exp(1), 5*a^(7.5*t));

a := evalf(subs(t = Pi, answer));

b := evalf(subs(t = Pi, response));

evalf(a-b);

Any explanations as to why the last line is not zero? any workarounds?

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