% Practical 2a:        sub2p2a.m
clc;clear  % 2.1.1-2.1.9,2.2-2.4
10
who
i*i
disp(j*j)
pi
who
pi=4
who
clear pi
pi
aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa=100
aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa=101
aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
namelengthmax
abc=121
abC=122
whos
for = 10
