Problem


Compute head profiles for steady 1D flow through soils in series
Cody Problem 58966 involves compute the head profile for steady, one-dimensional flow in a homogeneous aquifer (i.e., one with u...

3 years ago | 1 | 8 solvers

Solved


Make a "better" checkerboard matrix
This problem seeks to expand the task in Cody Problem 4 by allowing for the creation of checkerboard matrices that can be rectan...

3 years ago

Problem


Compute piezometric head in a leaky confined aquifer
Problem statement Write a function to compute the piezometric head in a leaky confined aquifer and the position of a groundwat...

3 years ago | 2 | 10 solvers

Problem


Compute the water table elevation in an unconfined aquifer with recharge
Problem statement Write a function to compute the water table elevation above the bottom of the aquifer and the position of a ...

3 years ago | 2 | 11 solvers

Solved


A row vector, pick 1st number, skip 1,pick 3rd number, skip 2,pick,skip,etc then place all picked numbers in order in new vector
Having a row vector of number, pick the first number, place in new output vector as the first value, then skip one number, pick...

3 years ago

Problem


Find the smallest number leading to a maximal product of two numbers that concatenate to another number
Cody Problem 58971 involves the maximal product of numbers that concatenate to a number . For example, if , then the products ar...

3 years ago | 2 | 7 solvers

Solved


Concatenate a successive power matrix in a column matrix
Generate F = [M1 M^2 ... M^p] with M a matrix, without using for.

3 years ago

Problem


Compute the maximal product of any two numbers whose concatenation is n
Write a function that takes an input and computes the maximal product of numbers that concatenate to . For example, if , then t...

3 years ago | 0 | 12 solvers

Problem


Compute the head for steady 1D flow in a homogeneous aquifer
Problem statement Write a function that computes the head (i.e., piezometric head for a confined aquifer or water table elevat...

3 years ago | 3 | 13 solvers

Problem


Find the nine-point circle of a triangle
Cody Problem 1336 asks us to find the circle that circumscribes a triangle, and Cody Problem 58354 asks us to find the circle th...

3 years ago | 0 | 5 solvers

Problem


Count block fountains
A block fountain consists of rows of circles in which each row is a continuous block of circles (i.e., adjacent circles are tang...

3 years ago | 1 | 10 solvers

Problem


Compute measurement uncertainty
Suppose a variable depends on independent variables , , . If the independent variables have uncertainty , , etc. and the uncer...

3 years ago | 1 | 16 solvers

Solved


Neural Net: Calculate Perceptron
This challenge is to calculate the Neural Net Perceptron value,P, given X, WH, and WP using ReLU on the hidden layer. This examp...

3 years ago

Solved


Neural Net: Best Index of Prediction array
The final ouput of a neural net application is a Prediction matrix/vector,P, that gives the probability of the input being of a ...

3 years ago

Solved


Intersection(s) of Circles
Do two given circles intersect in Zero, One, or Two points and provide the intersection(s). The Stafford method may provide some...

3 years ago

Solved


Neural Nets: Activation functions
Return values of selected Activation function type for value,vector, and matrices. y=Activation(x,id); where id is 1:4 for ReLU...

3 years ago

Solved


Array size along k-th dimension
Given an n-dimensional array M, find the size of M along the k-th dimension (1 <= k <= n), without using size(), height() or wid...

3 years ago

Solved


Array Height (no usage of size)
Find the array height, the number of rows. Size may not be used.

3 years ago

Solved


Array Width (no usage of size)
Find the array width. Size may not be used.

3 years ago

Solved


Solve the matrix equation AXB + X + C = 0 for X
Let A, B, and C be square matrices of equal size, and let the matrix X be defined by the matrix equation A * X * B + X + ...

3 years ago

Solved


Find the Connecting Path
Here is a matrix x x = [7 6 8 5 7 2 4 5 1 3 0 0 0 7 7 7 7 7 0 0 0 0 0 0 0 0 0 0 0 5 5 5 5 5 0 0 0 0 0 0...

3 years ago

Problem


Count collisions in an idealized block system
Two blocks, which have masses and , slide along a frictionless, semi-infinite track bounded by a stationary wall. Initially blo...

3 years ago | 0 | 8 solvers

Solved


A Mathematical Problem
Find the kth digit of the inverse of a number 'n'. Assumption: n>1

3 years ago

Solved


掃き出し法を実装して、連立一次方程式を解いてみよう
※本問は、2023/7/24開催の、筑波大学でのセミナーのために作成した問題です。 掃き出し法を使った連立一次方程式の解法を穴埋めで実装してみましょう。 左辺と右辺を、それぞれ以下の行列Aおよび列ベクトルBで表したものが与えられたとします。この時、...

3 years ago

Solved


Find the surface area of a cone.
For instance, Given r (radius) = 3, and s (slant height) = 5: surface area should be 94.

3 years ago

Solved


Fibonacci Sequence
Write a MATLAB function called fibonacci_sequence(n) that takes an integer n as input and returns the first n terms of the Fibon...

3 years ago

Solved


convert 24 hour time to 12 hour time
convert 24 hour time to 12 hour time Input: '13:12' Output: '01:12 PM' Input: '06:12' Output: '06:12 AM'

3 years ago

Solved


Hemisphere Volume on Top of a Cylinder
This MATLAB function has to calculate the volume of a hemisphere placed on top of a cylinder, given valid inputs. It takes the r...

3 years ago

Solved


Determine if input is greater than 100
Evaluate if given number is greater than 100. If greater, return true; else, return false.

3 years ago

Solved


A times B
A times B

3 years ago

Load more