#It's OK to post.  Tong Cheng, Feb 3rd, 2019, Assignment 3

For reading of Frank Garvan's Maple booklet from P62~92, some samplea are as follows:
#1:
dsolve({de1,de2,f(0)=1,g(0)=2}, {y,z});

asympt(Psi(z), z, 3);

#2
#parametric plot
plot([f(t), g(t), t=a..b]);

with(plots):
p1:=plot(f1(x), x=a..b):
p2:=plot(f2(x), x=c..d):
display(p1, p2):

with(plots):
polarplot(f(x), x=a..b):

with(plots):
implicitplot(f(x,y)=0, x=a..b, y=c..d):

plot([ [1,2], [3,4] ], style = point):

plot(f(x), x=a..b, title='abcdef..'):
textplot( [a, b, 'fajlk'] ):

#3 
plot3d()

contourplot()

#4
with(plots):
animate(1/(1+x*t), x=1..10, t=0..1, frames=10):

#5 
with(linalg):
A:=matrix(2,3, [a b c d e f]):
print(A):

entermatrix(B);
#must use semi-colon when inputing

# matrix operation
evalm