[Solved] Identify the issue in this MATLAB code:f = @(t,y) 3*y; [t,y] = ode45(f, 0:0.2:1, 1); disp(y(end)); — Ans: Using a vector for time span instead of a two-element interval | MATLAB

MATLAB - Numerical Methods

Identify the issue in this MATLAB code:

f = @(t,y) 3*y;
[t,y] = ode45(f, 0:0.2:1, 1);
disp(y(end));

AIncorrect function handle syntax

BUsing a vector for time span instead of a two-element interval

CInitial condition should be a vector

DMissing semicolon after function definition

Step-by-Step Solution

Solution:

Step 1: Check time span input
ode45 expects the time span as a two-element vector [t0 tf], not a vector of points.
Step 2: Analyze given code
The code uses 0:0.2:1 which is a vector of multiple points, causing an error or unexpected behavior.
Step 3: Confirm other parts
Function handle and initial condition are correct.
Final Answer:
Using a vector for time span instead of a two-element interval -> Option B
Quick Check:
Time span must be [start end] [OK]

Quick Trick: Time span must be two-element vector [OK]

Common Mistakes:

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