Feeds
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Design a capture zone
One approach to remediating a contaminated site is to pump and treat the contaminated groundwater. If the site has background fl...
2 years 前
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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 ...
2 years 前
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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...
2 years 前
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Compute flow in a partially full pipe
Problem statement When does the maximum flow occur in a pipe? Intuition might suggest that it occurs when the pipe is flowing f...
2 years 前
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Solve an ODE: draining tank
Write a function to compute the time to drain a cylindrical tank of diameter from an initial level to a level . The outflow oc...
2 years 前
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Determine whether a hydrograph is a unit hydrograph
A hydrograph describes the runoff response of a catchment or watershed to rainfall. It shows the runoff rate (or flow or discha...
2 years 前
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Determine if input is odd
Given the input n, return true if n is odd or false if n is even.
6 years 前
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Fibonacci sequence
Calculate the nth Fibonacci number. Given n, return f where f = fib(n) and f(1) = 1, f(2) = 1, f(3) = 2, ... Examples: Inpu...
6 years 前
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Who Has the Most Change?
You have a matrix for which each row is a person and the columns represent the number of quarters, nickels, dimes, and pennies t...
6 years 前
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Make a checkerboard matrix
Given an integer n, make an n-by-n matrix made up of alternating ones and zeros as shown below. The a(1,1) should be 1. Examp...
6 years 前
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Column Removal
Remove the nth column from input matrix A and return the resulting matrix in output B. So if A = [1 2 3; 4 5 6]; ...
6 years 前
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Find all elements less than 0 or greater than 10 and replace them with NaN
Given an input vector x, find all elements of x less than 0 or greater than 10 and replace them with NaN. Example: Input ...
6 years 前
