matrix
March 1, 2025
[5]: li=[[1,3,4],[2,4,3],[1,2,5]]
li
[5]: [[1, 3, 4], [2, 4, 3], [1, 2, 5]]
[5]:
[7]: for i in range(0,3):
for j in range(0,3):
print(i,j,end=" | ")
print()
0 0 | 0 1 | 0 2 |
1 0 | 1 1 | 1 2 |
2 0 | 2 1 | 2 2 |
[ ]:
[25]: for i in range(0,3):
for j in range(0,3):
print(li[i][j],end=" | ")
print()
1 | 3 | 4 |
2 | 4 | 3 |
1 | 2 | 5 |
[ ]:
[121]: for i in range(0,3):
for j in range(0,1):
print(i,i)
0 0
1 1
2 2
[42]:
1
[196]: s=0
for j in range(0,1):
s=s+li[i][i]
print(s)
[ ]:
[ ]:
[235]: li=[[1,2,3],[4,5,6],[7,8,9]]
li
s=0
for i in range(0,3):
s=s+li[0][i]
print(s)
s=0
for i in range(0,3):
s=s+li[1][i]
print(s)
s=0
for i in range(0,3):
s=s+li[2][i]
print(s)
print()
s=0
for i in range(0,3):
s=s+li[i][0]
print(s,end=" ")
s=0
for i in range(0,3):
s=s+li[i][1]
print(s,end=" ")
s=0
for i in range(0,3):
s=s+li[i][2]
print(s)
print()
s=0
for i in range(0,3):
s=s+li[i][i]
print(s) #diagonal
2
print()
s=0
for i in range(0,3):
s=s+li[i][2-i]
print(s) #diagonal
6
15
24
12 15 18
15
15
[ ]:
[234]: x=[[1,2,3],[4,5,6],[7,8,9]]
y=[[2,1,1],[2,1,1],[1,2,2]]
s_x = 0
for i in range(0,3):
s_x += x[i][i]
print("Sum of diagonal of x: ",s_x)
s_y = 0
for j in range(0,3):
s_y += y[j][j]
print("Sum of diagonal of y: ",s_y)
totalsum=s_x+s_y
print("total sum of both diagonals",totalsum)
Sum of diagonal of x: 15
Sum of diagonal of y: 5
total sum of both diagonals 20
[ ]:
[281]: x=[[1,2],[4,1]]
y=[[2,2],[4,4]]
output=[]
for i in range(len(x)):
for j in range(len(x[i])):
3
output.append(x[i][j]**2 +y[i][j]**2)
print(output)
[5, 8, 32, 17]
[ ]:
[272]:
[308]: li=[[1,2,3],[4,5,6],[7,8,9]]
li
s=1
for i in range(len(li)):
for j in range(len(li[i])):
print(li[i][j]**2,end=" ")
print()
s *=li[i][j]**2
print("Multiply all of these squared values together. :",s)
1
4
9
16
25
36
49
64
81
Multiply all of these squared values together. : 131681894400
[288]:
[314]: li=[[1,2,3],[4,5,6],[7,8,9]]
li
s=1
for i in range(0,len(li)):
for j in range(0,len(li[i])):
s *= li[i][j]
print(s)
362880
[ ]:
4
[354]: li=[[1,2,3],[4,5,6],[7,8,9]]
li
s=1
for i in range(len(li)):
for j in range(len(li[i])):
if li[i][j] > 5:
s *= li[i][j]
print(s)
3024
[353]: li=[[1,2,3],[4,5,6],[7,8,9]]
li
s=0
for i in range(len(li)):
for j in range(len(li[i])):
if li[i][j] > 5:
s += li[i][j]
print(s)
30
[ ]:
[355]: for i in range(1,7):
for j in range(7,i,-1 ):
print(" ",end=" ")
for j in range(0,i):
if(i==3) and (j<=1) and (j>=1):
print(" ",end=" ")
elif(i==4) and (j>=1):
print("*",end=" ")
elif(i==5) and (j<=3) and (j>=3):
print(" ",end=" ")
else:
print("*",end=" ")
for j in range(1,i):
if(i==5) and (j>=1) and (j<=1):
print(" ",end=" ")
elif(i==4) and (j<=1):
print("*",end=" ")
elif(i==3) and (j<=1):
print(" ",end=" ")
else:
5
print("*",end=" ")
print()
for k in range(1,7):
for l in range(1,4 ):
print(" ",end=" ")
for l in range(1,8 ):
if(k>1 and k<6) and (l>1 and l<7):
print(" ",end=" ")
else:
print("*",end=" ")
print()
*
* * *
* * *
* * * * * * *
* * * * * * *
* * * * * * * * * * *
* * * * * * *
* *
* *
* *
* *
* * * * * * *
[ ]:
