This code will be about creating a factorial calculator and we’ll keep practicing with the “while” loop.

Before I show you how to do the program, let’s review what a factorial is. According to this webpage, is “the product of a given positive integer multiplied by alllesser positive integers: The quantity four factorial (4!) = 4 ⋅ 3 ⋅ 2 ⋅ 1 =24. Symbol: n!, where n is the given integer.”

Now we’re ready to start programming.

First, I’ll make the main code. It’ll make the calculator’s work. As always, we ask the user for the number with an input. Then we convert the variable to an integer so the program is able to use it. The counter is designed with the value “1” just like the R variable.

Is necessary to do this before the while loop because if we just start using variables without specify their initial value, Python won’t recognize them and the program won’t run.

What the loop does is simple, it just multiplies the consecutive numbers from 1 to the number that the user gave us. For that reason the “cont” variable increments one unit each time the code runs. The loop will end when the counter gets bigger than the variable that the user typed.

Up to here, when we execute the program,  the terminal window will show this:

And NOOOOW we’ll insert another loop to ask the user if he/she would like to use the program again.

You can notice that I added another variable with the “yes” assignation. This means that WHILE the answer to the question in line 11 is “yes” the program will keep running. If the user types something different, the loop will end, and the word “thanks” will be printed.

You can be aware that the

Continue reading “Factorial Calculator (WSQ09)” →

On this blog I’ll develop a code that asks the user a range of numbers and the program will return the sum of all numbers of that range.

To get started, we need to ask the user for the range of numbers with an input:

After that, is necessary to convert the inputs to integer numbers so our program can run without problems. Every number in python needs to have a type of number, it depends of what you need to do. For this program, I’ll use integers because this program does not need something more elaborated.

We also need a mathematical counter, I’ll explain later why. For now, we’ll give it the value of zero.

Then, a loop is needed to do the whole mathematical process, because the program will sum each number of the range consecutively.

While programming the loop, you need to be careful so you don’t code things unnecesarily. (Like I did) All the comments are the lines that wasn’t needed but I wrote at first, until the teacher helped me out to optimize the code.

The logic of the program is simple, the “cont” variable will sum the numbers of the range and the line #10 is the one that will increment the value of each  number of the serie as it advances.

Finally, we just print the result with the syntax that we already know. 

That’s it! We’re done with it!.

As always, I uploaded my code so you can check it.

Showing the Differences between a Traditional and a Flipped Classroom

It’s amazing the engagement that the teacher has in his classes, I mean, most of the classes that I have had are made in the traditional way, and after watching this video I realized that I haven’t learnt enough and it would have been much more productive if the classes were flipped. There’s a lot to work on in mexican education model. Teachers and students need to WANT to do the work, not just because “I need the grade” or “I need to feed my family”. We need to do everything with passion and engagement.

An A+ student regrets his grades

This post makes me think about what is really worthed during our time spent at college. Makes me wonder if all my 90 grades were actually 90 in my learning process. I need to change several things by my own if I want to start learning more than memorizing.

Suggestion: The Finland phenomenom

On this video, the finnish education developers show the effectiveness of their system and why it works. Finnish education is the best around the world, according to several rankings. The documentary is very interesting, check it out.

This homework is about converting Fahrenheit degrees to Celsius. The deal is that we need to ask the user for the temperature in Fahrenheit, and the code does the rest to convert that quantity to Celsius.

As I need the user to give me the number, I enter an input in my program, and I assign a variable to it. I will assing the variable “f”

To do the math process, we need to create another variable, so then a result can be printed.

My new variable is “c”, followed by the operation that will convert the Fahrenheit degrees to Celsius. I should be careful in this part because at the beginning I wasn’t writing the right syntax, so I had to try many times to get the right result, my advice is: be careful with the parentheses.

The formula is  C = 5 ∗ (F − 32)/9 we just need to transform that in a code. I’m telling the program that I just need the integer result with the “int” label, before the whole sentence.
Then I need my “f” variable. Let’s convert all our numbers to integers, I won’t use any float today, so I’m converting my “f” variable to an integer “int”.

Let’s print the result. To include the variables in the sentence, we must close the (“), type a (,) and then the variable. Like in the picture above.

The rest is easy. It’s necessary to indicate if the temperature that the user give us would make the water boil, freexe or none of them. We get that with the “if” label.

In the first “if” sentence, I needed to indicate the “range” in which the water is neither boiling nor freezing. We print the sentence that will indicate the result to our user. NOTE: you should type

Continue reading “Temperature (WSQ05)” →

The goal is to create a program that asks the user for two numbers and Python will show the difference between them.

First of all, we need to know the keywords that we’ll use. I write this at the beginning because I had no freaking idea about which labels would make what I wanted:

print: Print is the keyword that will order Python to write an specific sentence on the editor, so the user can understand what we want him/her to do. The syntax should be lije this example: print (“Text that you want to print”)

input: This label will keep the information that we’re asking for. The syntax will be like this: input (“What we’re asking the user to write”)

float: For this program, “float” helped me to make the difference between the inputs. I’ll show you what I’m talking about when I show you my program.

The difference of the two numbers.

Ok, now, if we want to make the difference of two numbers, we need to ask for them, but also to assign a variable to each one, so then we can make the operations.

To get that, we assign a different variable to each input, like in the image below

To get the result, we just need to add another variable and assign it the value of the difference.

But be careful, THIS is why you need the floats.

If you just type (+) the program will print the first number followed by the second one, but if you write “float” before each one, you’ll get this

I figured out that a float was needed thanks to this post.

This YouTube video was helpful too.

The product of the two numbers

We keep going and make exactly the same process, but this time, instead (-), we type

Continue reading “Fun With Numbers (WSQ03)” →