Question

how to Create a flowchart that will perform the multiplication, addition, subtraction and division of two numbers. First, the two numbers are given by the user. Then, given the two numbers, the 4 operations are performed. Lastly, it will display the results of the four operations. (Make use of valid variable names. Check our class reference for the description of a “valid” variable name).

Answer 1

@e.mccormick help,,,

Answer 2

OK, do you know the shapes to use in flowcharting?

Answer 3

yeah

Answer 4

OK, so first use a decision tree to find the variables and the operation to be used. Have it loop through itself, or branch, until it finds all three inputs. Then, based the math operation given, do the operation needed.

Answer 5

Your yes/no things can be things like:
Is it a number.
Is it a math operator.
If you get no to both you go to an error report to the user and end.
If it is a yes to one, you find out if you already have both variables, and so on.

Answer 6

after the decision what is the next step to do?

Answer 7

It is not one decision. It is a chain of them. What you do after each depends on the results. Once you have both variable and the operator, you need to go to processing the input properly. So lets say one of your things is, "Is it a math operator in the list /*-+." And the answer is yes. Then you set the math operation to that character. Well, later, based on the character you do the proper operation.

Answer 8

Actually, this time it is asking for all four operations.

Answer 9

So you really just need to have it prompt for the numbers. Takre them in. Do the math. Output the results.

Answer 10

uhhh ok...

Answer 11

I was thinking more like a calculator, but this question is saying " two numbers are given by the user" and "display the results of the four operations" That means you have far less choices to wory about.

Answer 12

IKR... but its still confusing

Answer 13

Well, think about how you would do this in real life if you could only do one thing at a time. So, you ask a person for a number. You write down what they tell you. You ask them for a second number. You write down what they tell you. Then you do one type of math with the two number and tell them the result. Then you do the next type and tell them the result. Etc. until you have done all four of multiplication, addition, subtraction and division of two numbers. Then you tell them you are done.

You just need to flowchart something similar to that process.

Answer 14

so thats the ask how to make flowchart of it.........

Answer 15

That is the whole thing in non-flowchart form. You just need to do that as a flowchart.

Answer 16

thanks :)

Answer 17

np. Don't have too much fun with it.

The important part with these is reading the question really well. When I first started talking about this, I had only glanced at it. So I started looking at doing too much! Then I read it, and made it a lot simpler. Reading a question fully like that can make a huge difference!

Answer 18

thank you sa advice :)

Answer 19

CS111

Answer 20

@e.mccormick still i dont know how to graph this one.

Answer 21

Well, it gets two number from the user, like the other one. But after that, it just does a little math and finally outputs the results of that math.

Answer 22

Start
Input two variables
Do math and assign results to more variables.
Output the 4 results.
End.

Answer 23

ok i'll try it thanks :)

Answer 24

np. Part of the reason for these diagrams is to make you get used to breaking things into smaller parts.

Programming is all about taking big jobs and making them into lots of small jobs.

Answer 25

yeah you have a point.

Answer 26

wooooh >.< its still confusing when its come in the "Do math and assign results to more variables"

Answer 27

i dont know what to ask in the decision

Answer 28

"perform the multiplication, addition, subtraction and division of two numbers"

So is is just the first times the second, first plus the second and so on. You do all four. No more asking.

Answer 29

"Then, given the two numbers, the 4 operations are performed." All four. No choices there.

Answer 30

can you draw??? so that i can easily understand ? if it is ok for you. :)

Answer 31

"Make use of valid variable names." So it needs to save the results in a valid variable.

"Lastly, it will display the results of the four operations. " and then it finally dispalys things.

Answer 32

Those thing earlier are an overview of the boxes. One line per box:

Start
Input two variables
Do math and assign results to more variables.
Output the 4 results.
End.

So you need to draw the right shape for input. Type/Write in the proper stuff for input. Go to the next box. Do a line for each calculation and have it assigned to a variable. Go to the next box. Output the results.