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visits member for 3 years, 6 months
seen 19 hours ago

19h
comment Maximum among $1, 2^{1/2}, 3^{1/3}, 4^{1/4},…$
what do you mean by "greatest absolute value from"?
19h
comment Maximum among $1, 2^{1/2}, 3^{1/3}, 4^{1/4},…$
The closest number is not necessary the greater.
20h
awarded  Excavator
20h
comment Whats an extended complex plane?
@Daniel Fischer mathworld.wolfram.com/ExtendedComplexPlane.html
20h
asked How the extension of complex plane with complex infinity $\tilde{\infty}$ coexists with extension of real line with positive infinity $\infty$?
20h
revised Whats an extended complex plane?
complex infinity is denoted with tilde usually to distinguish from positive infuinity
20h
suggested suggested edit on Whats an extended complex plane?
1d
comment Is the theory of dual numbers strong enough to develop real analysis, and does it resemble Newton's historical method for doing calculus?
@Mike Battaglia maybe it causes problems with distributiveness of multiplication? $0/0=\epsilon^2 \omega^2=(\epsilon\omega)(\epsilon\omega)=1$.
Apr
15
comment Where to find reference about dealing with operators in form of formal power series?
@Michael Hardy in $(D/D)f$ do you mean multiplication or application of operator? I used square brackets to indicate application of operator to a function.
Mar
24
revised Is there a special name for pi-based finite difference?
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Mar
24
comment Is there a special name for pi-based finite difference?
@nik no, check yourself. Pi is the period of tangent.
Mar
24
revised Is there a special name for pi-based finite difference?
added 6 characters in body
Mar
24
revised Is there a special name for pi-based finite difference?
edited body
Mar
24
revised Is there a special name for pi-based finite difference?
added 45 characters in body
Mar
24
asked Is there a special name for pi-based finite difference?
Mar
24
comment How to define the $0^0$?
The second premise is wrong.
Mar
20
asked What happens if to postulate that complex numbers whose argument differs by $2 \pi$ are not equal?
Mar
17
comment What is the arithmetic mean of all positive integers less than $1$?
@robjohn no. wrong.
Mar
17
comment What is the arithmetic mean of all positive integers less than $1$?
@robjohn what the question is what the answer. If the question has any meaning at all, the answer is 1/2.
Mar
16
revised Is it wrong to tell children that 1/0 = NaN is incorrect, and should be ∞?
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