From b1f5c3f8d6671b4331cef1dcebdf63b7a43a3a2b Mon Sep 17 00:00:00 2001
From: priyanka
Date: Wed, 24 Jun 2015 15:03:17 +0530
Subject: initial commit / add all books

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 49/CH3/EX3.2/example2.sce | 38 ++++++++++++++++++++++++++++++++++++++
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 create mode 100755 49/CH3/EX3.2/example2.sce

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diff --git a/49/CH3/EX3.2/example2.sce b/49/CH3/EX3.2/example2.sce
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+//Caption:Combination of component errors in overall system-accuracy calculations
+//example2
+//page 62
+clc;
+//Consider an experiment for measuring, by means of a dynamometer, the average power transmitted by a rotating sheft
+disp("R=1202 ")
+disp("F=45")
+disp("L=0.397 ")
+disp("t=60")
+R=1202  //('Enter the revolutions of shaft during time t=:')
+F=45  //('Enter the force at end oftorque arm=:')
+L=0.397 //('Enter the length of torque arm=:')
+t=60  //('Enter the time length of run=:')
+W=(2*%pi*R*F*L)/t;
+//Computing various partial dervatives
+dWF=(2*%pi*R*L)/t; 
+disp(dWF)   //dWF represents dW/dF
+dWR=(2*%pi*F*L)/t;
+dWL=(2*%pi*F*R)/t;
+dWt=-(2*%pi*R*F*L)/(t^2);
+//Let f, r, l and t represent the uncertainties
+disp("f=0.18")
+disp("r=1 ")
+disp("l=0.00127 ")
+disp("t=0.5")
+disp("Ea=(dWF*f)+(dWR*r)+(dWL*l)+abs(dWt*t); ")
+f=0.18   //('Enter the uncertainty in force=:')
+r=1  //('Enter the uncertainty in the no of revolutions=:')
+l=0.00127   //('Enter the uncertainty in the length=:')
+t=0.5  //('Enter the uncertainty in the time length of run=:')
+Ea=(dWF*f)+(dWR*r)+(dWL*l)+abs(dWt*t);      //absolute error
+printf("The absolute error is  ")
+disp(Ea);
+//To find total uncertainty
+U=(((dWF*f)^2)+(dWR*r)^2+(dWL*l)^2+abs(dWt*t)^2)^0.5
+printf("Total uncertainty is ")
+disp(U)
+
-- 
cgit