Solving First Order Differential Equationsdsolve Symbolic solution of ordinary differential equations.dsolve will not accept equations as strings in a future release.Use symbolic expressions or sym objects instead.For example, use syms y(t); dsolve(diff(y)==y) instead of dsolve('Dy-y).Example 1:Solve y'= y, y(0) = 2syms x y(x)dy(x) = diff(y);Ydsolve(dy==y,y(0) == 2);Example 2:Solve 2)=x√1-1²syms x y(x)dy(x) diff(y);Y = dsolve(dy==x*sqrt(1-y^2));Exercises:Solve the following differential equations1. (1+x)y' - xy = x + x²2. + y = x,y(0) = 4dx3. dy+ysecx = COSXaxScript1%Declare the variables, x, y(x) and dy(x)34 %Solve equation 1, place final Answer as Y15 Y1 =6 %Solve equation 2, place final answer as Y2Y2 =8 % Solve Equation 39 Y3 =My Solutions >Save C Reset E MATLAB Documentation

Solution: 1. To solve (1+x)y' = x+x^2, we can first simplify the equation by dividing both sides…

Solving First Order Differential Equations dsolve Symbolic solution of ordinary differential equations. dsolve will not accept equations as strings in a future release. Use symbolic expressions or sym objects instead. For example, use syms y(t); dsolve(diff(y)==y) instead of dsolve("Dy-y). Example 1: Solve y' = y, y(0) = 2 syms x y(x) dy(x)= diff(y); Y = dsolve(dy==y,y (0) == 2); Example 2: Solve y=x√1-1² syms x y(x) dy(x) = diff(y); Y = dsolve(dy==x*sqrt(1-y^2)); Exercises: Solve the following differential equations 1. (1+x)y' - xy = x+x 2. + y = x, y(0) = 4 dx 3. dy+ysecx = cosx Script 1%Declare the variables, x, y(x) and dy(x) 4 %Solve equation 1, place final Answer as Y1 Y1 = 6 %Solve equation 2, place final answer as Y2 7 Y2 = % Solve Equation 3 9 Y3 = Save C Reset My Solutions > MATLAB Documentation

Solving First Order Differential Equations dsolve Symbolic solution of ordinary differential equations. dsolve will not accept equations as strings in a future release. Use symbolic expressions or sym objects instead. For example, use syms y(t); dsolve(diff(y)==y) instead of dsolve("Dy-y). Example 1: Solve y' = y, y(0) = 2 syms x y(x) dy(x)= diff(y); Y = dsolve(dy==y,y (0) == 2); Example 2: Solve y=x√1-1² syms x y(x) dy(x) = diff(y); Y = dsolve(dy==x*sqrt(1-y^2)); Exercises: Solve the following differential equations 1. (1+x)y' - xy = x+x 2. + y = x, y(0) = 4 dx 3. dy+ysecx = cosx Script 1%Declare the variables, x, y(x) and dy(x) 4 %Solve equation 1, place final Answer as Y1 Y1 = 6 %Solve equation 2, place final answer as Y2 7 Y2 = % Solve Equation 3 9 Y3 = Save C Reset My Solutions > MATLAB Documentation

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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public static void main(String[] args) { Database db = new Database(); CD c = new CD("A Swingin' Affair", "Frank Sinatra", 16, 64); CD d = new CD("Big Bad World", "Plain White T's", 10, 35); Video x = new Video("0 Brother, Where Art Thou?", "Joel & Ethan Coen", 106, VideoType. Bluray); Video v = new Video("0 Brother, Where Art Thou?", "Joel & Ethan Coen", 106, VideoType. DVD); Video y = new Video("Infinity Wars", "Anthony & Joe Russo", 149, VideoType.Bluray); db.addItem(c); db.addItem(d); db.addItem(x); db.addItem(v); db.addItem(y); db.search("0 Brother"); db.search(VideoType.Bluray); }
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