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simple math with wrong results results

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Opariuc Andrei
Opariuc Andrei on 19 Mar 2021
Commented: Opariuc Andrei on 19 Mar 2021
so i'm trying to reproduce some homework nothing too complicated ,simple stuff , when applying the formula for E i'm receiving 1 value 0.7018 , i tried writing the vectors P_ref and P_m as colums i ran the program again and i'm getting some weird values which i attached in an ss ,everything else gives the desired values ,if i manually do the multiplication and divisionin command window i get the desired value .What did i do wrong ?
%% input
L_et=6; % Measurement limit for the standard manometer
L_m=6; % Measuring limit for checked manometer
et=.6; % Precision class for the standard manometer
em=1.6; % Precision class for the checked manomenter
P_ref=[0.75 ; 1.5; 2.25 ; 3; 3.75; 4.5 ; 4.5; 3.75 ; 3 ; 2.25; 1.5 ; 0.75;];
P_m= [0.76; 1.55; 2.3; 3.08; 3.84; 4.58; 4.58; 3.67; 2.92; 2.18; 1.45; 0.748;]
%% calculus
disp("the maximum value of the absolute measurement error for the standard manometer e_lim_m ")
e_lim_et=L_et*(et/100);
disp(" the maximum value of the absolute measurement error for the manometer to be checked by e_lim_m ")
e_lim_m=L_m*(em/100);
disp(" absolute measurement error e ")
e=P_m-P_ref
disp(" relative measurement error E ")
E=(e/P_ref)*100
disp(" total relative measurement error Et ")
Et=(e/L_m)*100

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