43. What is matrix

Question 1

what is a matrix? what it is useful for

Answer 1

an list with multiple arrays inside it.

machine learning, and computer processing

Question 2

How do you acces an number in one of the lines in a matrix?

Answer 2

1. put print
2. write matrix
3. put the number of the line
4. put the order of the number you want

Question 3

What is list methods?

Answer 3

len() -length of a list (human legths)

Question 4

How do you use .insert?

Answer 4

1. write the name
2. write .insert
3. 3. add the number you want the new number to be beside
4. add the new number

Question 5

how do you use .extend ?

Answer 5

-adds on and extends list with a ([])

Question 6

How do you remove things in list? what does .pop do

Answer 6

basket.pop
meaning basket is the name, pop takes a way the last item of list

-also put the number of where it is and removes it

Question 7

what does .remove do?

Answer 7

removes the velue of the number you put in the brackets

Question 8

what does .pop do?

Answer 8

returns only one number

Question 9

what does .clear do?

Answer 9

explainable,

Question 10

Wha does .index() do?

Answer 10

shows you where the place holder is of the letter, or object inserted in the brcket beside it

Question 11

what does “in” do in
print(‘i’ in my name is Inus’)

Answer 11

says I is true

Question 12

what does .count do

Answer 12

count homw many times something is in a list

Question 13

what does .reverse do?

Answer 13

reverses the basket in place
backwards list

Question 14

what does .sort() do?

Answer 14

puts things in order