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OJFord
  • Member for 10 years, 5 months
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12 votes
4 answers
83k views

Showing AB=0 does not imply either A,B=0, but that singular

7 votes
1 answer
315 views

Is the natural exponential function defined as being its own derivative?

4 votes
3 answers
382 views

Why do we assume the complex plane is curvey at infinity?

3 votes
1 answer
705 views

Intuition behind unit hypersphere/n-ball volume [duplicate]

3 votes
1 answer
540 views

Validity of conditional CDF proof via PDF integral

3 votes
1 answer
60 views

Is 'limit' synonymous with 'radius of convergence'?

2 votes
2 answers
429 views

Changing order of integrals within integrals

2 votes
2 answers
176 views

Locus in complex z-plane given eqn

1 vote
2 answers
168 views

Numerator = Denominator = 0

1 vote
1 answer
225 views

Reason for $0^-$ bound on unilateral Laplace transform

1 vote
0 answers
48 views

Arrangements of numbers when each can have multiple values?

1 vote
1 answer
43 views

'Splitting' Identity matrix around others?

1 vote
1 answer
2k views

Null space in ordinary differential equations

1 vote
1 answer
612 views

Indefinite integrals and changing variables

0 votes
0 answers
73 views

Representative value of non-square matrix

0 votes
2 answers
1k views

Rules for combination of odd vs even functional equations

0 votes
1 answer
3k views

Meaning of multiplication by $\sin$ in $\omega$-domain