User A_for_ Abacus - Mathematics Stack Exchange

A_for_ Abacus

Member for 8 years, 2 months
Last seen more than a month ago

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7

answers

128

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19

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Inquisitive

Jul 3, 2018
Constituent

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Nov 16
Notable Question

× 6

Feb 20

43

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Self-Learner

Oct 24, 2016
Cleanup

Feb 6, 2018
Excavator

Feb 17, 2020

Top tags

calculus

6

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7

Posts

5

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statistics

1

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68

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50

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probability

0

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22

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16

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combinatorics

0

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10

Posts

7

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algebra-precalculus

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6

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4

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probability-distributions

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All Questions Answers

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14

Prove $\sum\limits_{i=0}^n\binom{i+k-1}{k-1}=\binom{n+k}{k}$ (a.k.a. Hockey-Stick Identity) [duplicate]

Jun 14, 2014

9

Meaning of math symbol ~

Jun 30, 2014

8

Is this a polynomial?

Jun 16, 2014

8

Confused about when to convert units

Jul 2, 2018

7

What do Indeterminate Forms mean? [duplicate]

Mar 1, 2018

6

Derivatives: simplifying "d" of a number without being over "dx"

Oct 24, 2016

5

Derivatives: simplifying "d" of a number without being over "dx"

Oct 24, 2016

5

Addition Rule for Expectations

Feb 9, 2018

5

Third Moment of Geometric Series?

Feb 27, 2018

4

Why does Trig Substitution need the substitution to be one-to-one?

Oct 14, 2016

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422

Installation failed with message Invalid File

375

C++ Loop through Map

13

How does the U.S. or Canadian government prevent the average joe from obtaining dimethylmercury for murder?

12

How do you credit people who review your paper before submission?

9

How did I still lose with 1 piece advantage?