Question
Transcribed Text
Task 1 (17 pts): In an *.m file, load in the same SampleECG data provided in Lab 1. Create a new array containing the
second half of the SampleECG signal (samples 129:256). Invert the signal by multiplying each element of the signal by -1.
What is the minimum value of this signal?
What is the maximum value of this signal?
What is the vector length of this signal?
Task 2 (17 pts): Create a new array that contains all numbers from 1 to 24 using " operator. Calculate a new array by
finding the square root of each number in your array. Find the total sum of all numbers in this array. What is the natural
logarithm of that value?
Hint: ansuer 4.3899
Task 3 (16 pts): Prompt the user to input any two separate variables into MATLAB. Assign variable IT to be the ratio of
the two variables. Calculate the following function of this ratio
tan(r7)
y
=
+ Vr++1
sin(rr - 1) + cos(rr + 1)
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clear; clc; close all;%Clear memory and screen%%
%Task 1
disp('Task 1');
T = dlmread('ECGSample.txt');%Load file
T_sh=T(129:256);%Create array of second half of data
T_sh=T_sh*-1;%Invert signal
fprintf('\nInverted second half Signal details: Max. value=%8.5f, Min. Value=%8.5f\nand length of signal vector=%i\n\n',max(T_sh),min(T_sh),length(T_sh));
disp('Press any key to continue');
pause...
By purchasing this solution you'll be able to access the following files:
ECGSample.txt and Tsk123.m.
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