Sec A Reg Name Test 1 Test 2 170103020003 Mahin Ahmed Qureshi 2.5 4 170103020005 Tania Sultana 5 5 170103020007 Shoriful Islam Sayem 3 5 170103020009 Palash Barmon 5 2 170103020013 Syed Jafrul Husen 5 6 170103020015 Ruhul Amin 4 3 170103020017 Md. Abu Shahan 3.5 5 170103020019 Shah Jahan Chowdhury A A 170103020025 Sanjida

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## CHE 101 Spring 2019 Assignment Submission list

Below is list of assignments I have marked. If you have not submitted any assignment, you can submit the remaining assignments for reduced marking. 7th Semester Section A + 8th Semester Reg Name ASS 1 ASS 2 ASS 3 ASS 4 ASS 5 170103020003 Mahin Ahmed Qureshi OK – – OK OK 170103020005 Tania Sultana

## CHE 101 Spring 2019 Tutorial 2 [Tutorial Question added]

This is a remainder for all of you that your tutorial 2 will be held on 18th April 2019, Thursday from 8:30 AM at Room no 501. If for any reason any program arises at room no 501, backup place is room no 214. Details Date: 18th April 2019, Thursday Place: 8:30 AM Syllabus: Lecture

## CSE 431 Lecture 4 errata

Here are some errors that i have come through when rechecking lecture note 4. The errors are still not updated in the pdf. Kindly use these improvements. These are examples from page no 8

## CSE 432 Spring 2019 Lab 10

Task: Pole Zero, Roots, Poly, ZPKdata and PZ map of System clc; close all; clear all; num=[10 20 30]; den=[40 50 60]; sys=tf(num,den); poles=pole(sys) zeros=zero(sys) poles_using_roots=roots(den) zeros_using_roots=roots(num) den_using_poly=poly(poles) num_using_poly=poly(zeros) [z,p,k]=zpkdata(sys,’v’) pzmap(sys) Pole zero plot after laplace transform %Laplace Transform close all; clear; clc; syms t s; ft=5*t^2+ 3*t+9; fs=laplace(ft); pretty(fs); fw=fourier(ft); pretty(fw); ffs=simplify(fs); pretty(ffs) [n,d]

## CSE 432 Spring 2019 Lab 9

Task #1 Create a 10 second time vector in MATLAB. Use fs (sampling rate) = 1000 Hz. Using the formula for a chirp from last lab create a chirp signal from this time vector. Use the initial starting frequency f0= 10 Hz and a modulation index, µ=1. Plot this signal in both the time and

## CSE 432 Spring 2019 Lab 8

Task #1 Importing audio into MATLAB Audio can be imported into MATLAB using audioread()or wavread()functions. The example below shows importing a sound and plotting it. clear close all clc [y, Fs, nbits]=wavread(‘Tuning fork 1’); sample=length(y); totaltime=sample/Fs; t=1:sample; t=t/Fs; y_fft = abs(fft(y)); y_fft = y_fft(1:sample/2); f = Fs*(0:sample/2-1)/sample; figure plot(t,y) figure plot(f, y_fft) Task #2

## CSE 432 Spring 2019 Lab 7

Task 1 More symbolic algebra %Lab 7 task 1 close all clear clc syms x y; y=x^2 + 5*x + 6; fplot(‘x^3 + 5*x^2+9*x + 6’, [-50 50]) figure ezplot(‘1+cos(x)’) figure ezpolar(‘x^3 + 5*x^2+9*x + 6’) figure ezpolar(‘1+cos(x)’) Task 2 Laplace transform and Inverse Laplace transform in Matlab %Lab 7 task 2 : Laplace and

## Chemistry Lecture 5 update

There has been some mistakes in the original lecture sheet for lecture 5 of CHE 101. The examples and exercise are intended to be from Chemistry 10th edition by raymond change instead of general chemistry book by the same writer. The updated lecture sheet has been updated. Kindly check the updated lecture sheet and do

## CSE 432 Spring 2019 Lab Test 1

Date: 14th March 2019, Thursday Syllabus: Lab tasks for lab 1 through 5 Marks: [To be Updated Later]