There are a couple of errs in your code. Here is the corrected code:
% Please enter your name inside the single quotes in the next line
name = 'Segesman, Francis'; % Last Name, First Name
% Define unknowns and variables of integration
syms v1 % Unknown
syms t v % Variables of integration.
% Given
% Note how the function handle is created with @:
a = @(t)20*t; % [m/s^2]
t0 = 0; t1 = 3; % [s]
v0 = -10; % [m/s]
dv=@(v)1;
% Solve
% Note how the equation is set up with a symbolic var v1 in the 2nd half of the equation:
eqn = integral(a,t0,t1)- (v1-v0)==0
v1 = solve(eqn,v1) % Use solve to solve for v1
% If you have trouble, you may refer to WK1MATLAB1.
% Display
disp('You should get: The velocity at t=3 s is 80.00 m/s.');
fprintf('The velocity at t=3 s is %3.2f m/s.\n',v1);
fprintf('\n');
nameInfo = isempty(name);
if (nameInfo==1)
disp('Please enter your name in Line 2.');
end
