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//===========================================================================
//chapter 3 example 17
clc;
clear all;
//variable declaration
R1 = 500; //resistance in Ω
R2 = 615; //resistance in Ω
R3 = 100; //resistance in Ω
dR1 = 1; //limiting error(dR1/R1) in %
dR2 = 1; //limiting error(dR1/R1) in %
dR3 = 0.5; //limiting error(dR1/R1) in %
//calculations
R4 = (R1*R2)/(R3); //unknown resistance in Ω
dR4 =dR1+dR2+dR3; //relative error of unknown resistance in % ranging - to +
e = R4*(dR4/(100)); //limitng error in Ω
//result
mprintf("unknown resistance = %.2f Ω",R4);
mprintf("\nrelative error of unknown resistance ranging - to + = %3.2f percentage ",dR4);
mprintf("\nlimitng error = %3.2f Ω",e);
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