Matlab 2018a gives errors for simple statements like w=1;Is this due to installation error?

The Marlab script window shows an error on very simple commands such as w=1; See attached jpg file

Answer 1

[Walter Roberson]

Vel=8.0;[top_left

You started creating an array, but you did not finish creating it before you started an assignment.

Answer 2

[PADMAKAR]

sr=1.00;

Fs=1000;

bt=-80;et=80;

fpeak=40;

% WaveTyp='Ricker';

phstyp='zero';

% phstyp='quadrature';

Vel=8.0;[top_left

%scale=-100;

wt = 0:1:80; % The red error indicator comes below the "=" sign. Cannot understand why for a simple expression.

The errors are:1. Invaid Syntax & 2.Expression cannot be assigned to multiple values. I have yets to assign the function to multiple values and this gives me an error. Can this be an Matlab installation issue?