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Naz

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earned this badge 35 times.

Error function relation to the normal cumulative distribution function

Awarded Nov 5 at 23:18

Mean square law of large numbers

Awarded Sep 13 at 8:58

Moore-Penrose pseudoinverse solution of a system of linear equations

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Einstein's summation of integers from 1 to n

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Finding a characteristic function of an exponential pdf

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Limit of $\sin(\pi \sqrt{4n^2+n})$

Awarded Sep 21, 2022 at 19:05

Tangent theta formula

Awarded Aug 30, 2022 at 4:10

Prove that if $a^2+b^2$ is a multiple of three, then a and b are multiples of three

Awarded Jul 8, 2022 at 13:32

Help with the generalized triangle inequality

Awarded Sep 5, 2021 at 18:30

Geometric progression of cubic equation roots

Awarded Jun 14, 2021 at 5:15

Tilde notation, what does it mean

Awarded May 19, 2021 at 8:30

Rank-$1$ matrices

Awarded Feb 9, 2021 at 13:45

Deriving the projection matrix, that projects onto a vector in 2D

Awarded Dec 17, 2020 at 12:05

Absolute value graph sketching: $||x-1|-1|$

Awarded Oct 23, 2020 at 18:56

Logarithm function does not have discontinuity

Awarded Oct 7, 2020 at 21:34

Finding a position vector

Awarded Jul 7, 2020 at 5:11

Concavity of log function for proof of Young's Inequality

Awarded Jan 14, 2020 at 19:20

$(1-h)^n \geq 1-nh$ for any $h \geq 0$ and $n \geq 1$

Awarded Sep 23, 2019 at 14:35

3 balls into 3 cells problem

Awarded Sep 15, 2019 at 8:20

The sum of integers in each row / column / major diagonal of a Magic Square of order $N$ is $\dfrac{N(N^2+1)}{2}$

Awarded Sep 9, 2019 at 17:15

How to show that $f(z) = \bar{z}$ is not differantiable in the complex plane?

Awarded Aug 27, 2019 at 2:55

Log-normal distribution, central limit theorem

Awarded Aug 1, 2019 at 14:35

Dot product is an Euclidean norm in Euclidean space?

Awarded Jun 19, 2019 at 6:55

Taylor series expansion of $\log{x}$ to obtain infinite sequence for $\log{2}$

Awarded Apr 18, 2019 at 22:05

Show that the countable union of countable sets is countable - conceptualisation help

Awarded Apr 8, 2019 at 4:45

Angle between two straight lines (tangent formula)

Awarded Feb 6, 2019 at 21:55

Binomial expansion extension to negative powers

Awarded Feb 3, 2019 at 14:10

$x^2 + (k-3)x + k = 0$, ranges of k for roots to be of same sign

Awarded Dec 17, 2018 at 3:00

Showing that the set of all algebraic numbers is countable [duplicate]

Awarded Aug 10, 2018 at 22:20

Expectation of an absolute value of a normal random variate

Awarded Feb 27, 2018 at 14:33

Partial fractions, proper fraction with a perfect square factor

Awarded Dec 12, 2017 at 0:45

Division of a straight line in given ratio

Awarded Dec 3, 2017 at 10:33

Inversion of the inequality sign when raising to a negative power

Awarded Oct 9, 2017 at 18:45

Transpose of a projection matrix

Awarded Sep 18, 2017 at 0:47

Ranges of k values in quadratic for it to be positive

Awarded Mar 17, 2017 at 4:13

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