Transcript

Hello and welcome. From our Last Post we talked about and the difference between print statement and return statements. And from our previous video, from the previous video I posted, I talked about calculator. I created a calculator or program where we have to where we, we stop from the we stop after a single arithmetic operation has been performed. But in this scenario, in this case right now, we'll talk about furthering the calculator to the taking it to the next phase. We are the outcome from the first. Population that is performed can now be used. Where, which is where the return statement comes in, can now be used as a second phase to perform another arithmetic operation so quickly. We'll start halfway from where we stopped with the functions defined so quickly. Our N1 still stands for the first number where we are going to get it from the council, and we have an operator which will pick either addition, subtraction, multiplication and division. And then we have our end 2. D The second number that is used to multiply or or perform the arithmetic operation with the first number N1. And after this is done. Then we are going to officially now perform our calculation. Which is. Same as the first case where we stopped from the last video posted. So let's call this this variable, let's call it calculator 1, showing that it is for the first phase of calculation. Then we'll call our function calculation calculator and the function will have the N1, the operator and the N 2. So after that we are going to have another variable. Which? Which will now be. They used to. As a teen to print out our result. So let's have a variable results and we use our F string to substitute every every values from the N1N2 and the car Quan. To be a. To be to be substituted into. This calibrates to make up our calculator. So finally we print our result. Note that. The result? Print that out. Works with the return statement where the value that is given out as a result will now be used for further arithmetic operation. So we now have a new operator where we want to ask ourselves or ask the user to impute or enter another operator that can be used. So after this is done, we are still going to have another value, we'll call it entry, a new variable, we'll call it entry. And then we are going to have an impact statement. Telling the user to. Enter a third number which will be used to. We who should be used along with the new operator to calculate the return the result that was returned from the variable N1 and N2. So we'll have our new calculator. To be. A new calculator to be. Equal. The function call we are going to call the same function and then we are going to use calculator 1. The calculator 1 represents. Which is the return statement, the value that it holds that it retain as a placeholder or anyone which is the first number and N2 which is the second number and then next thing we are going to have after our calculator 1. Which represent those two values N1 and N2. We are going to have our new operator. Now the new operator is the. Is the operator either multiplication, division, any of it that is that is used? Along with the third number entry. So with this. We are going to finally have our final calculation for final calculator which we'll call F result being meaning final result. So the final result F result we are going to use an F string to. To substitute the values of this whole calculated values from calculator 1 which is value the operation between 1:00 and N 2, then the new operation. And then the value. Entry. So. We are going to make it equal our new calculator, new calc. So with this, we are next thing, we are going to paint out our health result, which is the final result. Which completes this whole calculator code. So if we run this code, we are going to have welcome to the calculator program, enter the first number and then we built 44 and then we will get a prompt for an operator. We pick an operator and then we enter the second number 12. We'll get 3.6666 and then we have another prompt for operator. If we impute multiplication and then we'll get a third number multiplied by five, we'll get 18.33. But we wouldn't want. Situation whereby we get this lengthy decimal place, so we are going to see how to round off the whole. Expression of values after the decimal place to like 3 decimal place numbers and then we'll run this code again. Then we'll get. After that we'll run this code and then a similar situation will play out. We are after the decimal place. We are going to have the values in three decimal places, so. If we still impede 44 and then we divide it by. 12:00 we have. 3.666 and they'll multiplied by five, we get this 18.323 with this we are done. Thanks.