PGE 310 - HW3 -Solution

# PGE 310 - HW3 -Solution - The University of Texas at Austin...

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1 The University of Texas at Austin PGE 310: Formulation and Solution in Geosystems Engineering Homework #3: Functions and Loops in MATLAB SOLUTION By HosseinRoodi 1. In each of the following, write I. The first line (by hand) of the MATLAB function file that would do the assigned task. II. The command (by hand) to call the function file from the interactive mode. a. I) A function called Manning.m that when sent the coefficient of roughness (n), the slope of water surface (S) and the hydraulic radius(R) , the velocity of water (V) is returned. function V= Manning(n,S,R) II) Call the function when the hydraulic radius is 5 and the slope of water surface is 0.0001 and coefficient of roughness is 0.05 and store the result in a variable called velwat . velwat= Manning(0.05,0.0001,5) b. I) A function called random_gen.m that returns three random numbers called a, b and c without sending any input. function [a,b,c]= random_gen II) Call the function in a single line, and store returned random numbers in rnd1 , rnd2 and rnd3 [rnd1,rnd2,rnd3]= random_gen c. I) A function called hydraulic.m that returns the cross sectional area of flow (acs), wetted perimeter of channel (p) and hydraulic radius (rh) when sent the channel width (b),

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## This note was uploaded on 04/12/2011 for the course PGE 310 taught by Professor Klaus during the Spring '06 term at University of Texas.

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PGE 310 - HW3 -Solution - The University of Texas at Austin...

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