Which of the following is an invalid variable name in MATLAB?

if(x>y) z=9;

A = [1 0 2] ;     b = [3 0 7] ; c=a.*b;

A = [0 1; 1 0] ; B=2 ; C = A * B

To place text on a plot using a mouse, the command used is _____

 The command used to generate an array of arrows is 

 What is the default parameter for dsolve() command 

 The command to draw the nature of a function over a default fundamental period is 

 To display the runs scored by a batsman towards different directions in a field, one uses 

 Which line is treated as H1 line