William

Last seen: Today | Active since 2012

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

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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 :...

10 hours ago

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

10 hours ago

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

10 hours ago

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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...

10 hours ago

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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...

10 hours ago

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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 :...

10 hours ago

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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 :...

10 hours ago

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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 :...

10 hours ago

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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...

10 hours ago

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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...

10 hours ago

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

10 hours ago

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

10 hours ago

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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 ...

10 hours ago

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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...

10 hours ago

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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 ...

11 hours ago

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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 ...

14 hours ago

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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...

1 day ago

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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,...

1 day ago

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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...

7 days ago

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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...

8 days ago

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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...

8 days ago

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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...

9 days ago

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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...

10 days ago

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Loja de tintas
Faça um programa para uma loja de tintas. O programa deverá receber o tamanho em metros quadrados da área a ser pintada. Conside...

12 days ago

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

13 days ago

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Triangulo Semelhante
Dados dois vetores A = (a1, a2, a3) e B = (b1, b2, b3) sendo referentes a arestas de triangulos. Verifique se os triangulos são ...

13 days ago

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Triangulo Retângulo
Dados o tamanho das 3 arestas (A, B, C) de um triângulo, retorne true se o triângulo for um triângulo retângulo. TrianguloRetan...

13 days ago

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Tipos de Triangulos
Dados os tamanhos dos lados de um triangulos A, B e C. Retorne qual o tipo do triangulo: 'equilátero', 'escaleno' ou 'isósceles'...

13 days ago

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Calculo das raizes com Bhaskara
Dado três valores a, b e c. Calcule as raizes da equação ax² + bx + c = 0 * para raizes reais, deve ser arrendondado em 2 casas...

13 days ago

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Converter lista de temperaturas
Dada uma lista de temperaturas em Fahrenheit,retorne um vetor com os valores convertidos para Celcius.

13 days ago

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