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William


Last seen: Today Active since 2012

Semi-retired physicist with interests in numerical modeling and mathematics.

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Solved


Split up vector or matrix delimited by NaNs
Given several vectors contained within one vector delimited by NaNs, return each individual vector as an element of a cell vecto...

ungefär 20 timmar ago

Solved


Measure the hydraulic conductivity with a falling-head permeameter
A falling-head permeameter is another device for measuring the hydraulic conductivity of a soil sample. In this problem the sam...

2 dagar ago

Solved


Amicable pair
Amicable numbers are two different numbers such that the sum of the proper divisors of each is equal to the other number. For e...

3 dagar ago

Solved


Number of leaps in binary search
Binary search is one of the most popular searching algorithms (Binary Search Algorithm). It works only in a sorted array. It uti...

3 dagar ago

Solved


Find the moving-average of the elements of a vector
Example Input vector: [1 2 3 4] output vector: 1st element=1/1, 2nd element=(1+2)/2, 3rd element=(1+2+3)/3, 4th element=(1+2...

3 dagar ago

Solved


Ordinary Annuity : Future Value
Theorem : Future Value of an Ordinary Annuity where; F : Future value A : Periodic payment r : Rate per period n : Numbe...

3 dagar ago

Solved


Ordinary Annuity : Rate (Future Value)
Theorem : Future Value of an Ordinary Annuity where; F : Future value A : Periodic payment r : Rate per period n : Numbe...

3 dagar ago

Solved


Ordinary Annuity : Rate (Present Value)
Theorem : Present Value of an Ordinary Annuity where; P : Present value of all payments A : Periodic payment r : Interest ...

3 dagar ago

Solved


Compound Interest: Interest Rate
Theorem : Compound Interest where, F : Future value at the end of n periods P : Present value r : Annual nominal rate n :...

4 dagar ago

Solved


Simple Interest : Calculate Future Value
Theorem : Simple Interest where; F : Future Value P : Present Value r : Annual simple interest rate (decimal) t : Time in...

4 dagar ago

Solved


Simple Interest : Calculate Present Value
Theorem : Simple Interest where; F : Future Value P : Present Value r : Annual simple interest rate (decimal) t : Time in...

4 dagar ago

Solved


Simple Interest : Calculate annual simple interest rate
Theorem : Simple Interest where; F : Future Value P : Present Value r : Annual simple interest rate (decimal) t : Time in...

4 dagar ago

Solved


Simple Interest : Calculate time in years
Theorem : Simple Interest where; F : Future Value P : Present Value r : Annual simple interest rate (decimal) t : Time in...

4 dagar ago

Solved


Compound Interest : Future Value
Theorem : Compound Interest where, F : Future value at the end of n periods P : Present value r : Annual nominal rate n :...

4 dagar ago

Solved


Compound Interest: Present Value
Theorem : Compound Interest where, F : Future value at the end of n periods P : Present value r : Annual nominal rate n :...

4 dagar ago

Solved


Compound Interest : Compounding Periods
Theorem : Compound Interest where, F : Future value at the end of n periods P : Present value r : Annual nominal rate n :...

4 dagar ago

Solved


Ordinary Annuity : Periodic Payments (Future Value)
Theorem : Future Value of an Ordinary Annuity where; F : Future value A : Periodic payment r : Rate per period n : Numbe...

4 dagar ago

Solved


Ordinary Annuity : Number of payments (Future Value)
Theorem : Future Value of an Ordinary Annuity where; F : Future value A : Periodic payment r : Rate per period n : Numbe...

4 dagar ago

Solved


Ordinary Annuity : Present Value
Theorem : Present Value of an Ordinary Annuity where; P : Present value of all payments a : Periodic payment r : Interest ...

4 dagar ago

Solved


Ordinary Annuity : Periodic Payment (Present Value)
Theorem : Present Value of an Ordinary Annuity where; P : Present value of all payments a : Periodic payment r : Interest ...

4 dagar ago

Solved


Jump Search - 02
Find the number of leaps you need to take to find the 'first occurrence' of an element in an array using the jump search algorit...

4 dagar ago

Solved


Ordinary Annuity : Number of Payments (Present Value)
Theorem : Present Value of an Ordinary Annuity where; P : Present value of all payments a : Periodic payment r : Interest ...

4 dagar ago

Solved


Return the middle element of an NxN square matrix where N is odd
Let's say you are given an NxN square matrix where N is always going to be an odd number: x = [ 1 2 3 4 5 6 7 8 ...

4 dagar ago

Solved


Pay up
You live in a world where arbitrary denominations of currency exist. You owe your friend a sum of money denoted by s. However, i...

5 dagar ago

Solved


Jump Search - 01
Find the number of leaps you need to take to find an element in an array using the jump search algorithm. For example, a=[ 2,...

5 dagar ago

Solved


sinus de pulsation a
Ecrire une fonction sinat qui prend en entrée un vecteur t (de valeurs croissantes) et renvoie un vecteur y de de même dimensi...

11 dagar ago

Solved


Définir une fonction creneau
Definr une fonction "creneau" qui prend en entrée un vecteur et renvoie la valeur 1 pour chaque élément positif du vecteur et...

11 dagar ago

Solved


Easy Sequences 72: Complete Graph
In Graph Theory, we say a graph is a Complete Graph, if all of its nodes are connected to evey other nodes in the graph. Example...

12 dagar ago

Solved


Magic Matrix
We are all familiar with the concept of magic matrix. In a magic matrix, the summation of all rows, columns and both diagonals...

12 dagar ago

Solved


Dominant Matrix - 01
A matrix is said to be diagonally dominant if for every row of the matrix, the magnitude of the diagonal entry in a row is large...

13 dagar ago

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