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#1 Re: Help Me ! » % » Yesterday 22:18:54

...Or you can also solve it by taking the % as x...

#2 Dark Discussions at Cafe Infinity » The amazing story of a dog » 2017-06-19 23:56:16

Replies: 1

In 1924, a professor named Hidesaburō Ueno in Japan was a dog lover and wanted a pure breed Akita dog and kept searching for it for a long time until one day his friend suggested him to adopt Hachiko, from the Odate city.

Hachiko, or Hachi which became his nickname, and his new owner soon became best friends, and  Ueno loved his dog above all and treated him as his son. The two of them were inseparable.They loved each other more than anyone and cannot be parted away at any cost.

Soon, Hachiko saw his master going to work in the morning at the Shibuya Train Station, in central Tokyo and return back at the afternoon. The dog then started to go by himself to the station to pick him up there.

One day, after two years, as usual he was waiting for his master to come back at the station in the ideal time in afternoon. However he did not receive up that afternoon. However, the dog did not lose hope. He kept waiting there for him till the night and again the next day. However, his master did not come even the next day. Still The dog kept on waiting for his master.

Actually, what had happened was that Proffesor Ueno had suffered from a cerebral hemorrhage and died suddenly and unexpectedly while at work.

Still, the dog did not lose hope. He waited and waited and waited for his master. He slept there only on the station, woke up and again sat down to recieve his master. He stopped eating, since he would only take food from his master. It soon became the attraction for many and many of them tried to convince him that his master had died and was not going to return back. But still that dog wouldn't listen. They also tried to offer him food which he rejected. He waited like that for the next nine years, nine months and fifteen days., found dead waiting for his master.

Hachiko, who died on 8th March 1935 was buried beside his master's grave

The story of the dog that never gave up gained a lot of attention also in national media, inspiring many people from all over the world to visit Hachiko at Shibuya Train Station to offer him treats.In 1934 a statue of Hachiko was unveiled at a grand ceremony in front of Shibuya train station with Hachiko himself present as the main guest.

Hachiko is now on display at the National Science Museum in Ueno, Tokyo.There is also a monument of Hachiko next to his owner `s tomb in Aoyama cemetery in Tokyo:

Today the Hachiko bronze statue is a popular attraction outside of Shibuya train station, especially among young Japanese.

There has actually been made two Hachiko bronze statues. The first one was removed during the World War II and melted as a source of metal.

Also on the wall of the Shibuya train station there is a huge beautiful mosaic art work of Hachiko.

In 1987 it was made a movie in Japan about Hachiko, called “Hatchiko Monogatari”.

In 2009 Hollywood made an American version of this movie, called “Hachiko – A Dog`s Tale“.

There have been published many written articles and books about him.


Hachiko waiting for his master at the station.



Hachiko with his master.


Hachiko stands with a shopkeeper of Suzutake meat at the Shibuya station.


The death of Hachiko.


The bronze statue of Hachiko.


The grave of the dog beside his master built up a monument.

#3 Re: Introductions » having fun with math » 2017-06-17 23:04:26

So I have come here to ask a few questions and some things I have found, if anyone is interested. wrote:

You are welcome to ask and tell about your findings.

#4 Re: Maths Is Fun - Suggestions and Comments » What is "moderated by" » 2017-06-16 19:11:35

Hi Moderator,

Thanks for removing that (which I had written to do) post. I do not want to talk about it anymore, but I may suggest MIF To have an adult content filter on this site...

#5 Maths Is Fun - Suggestions and Comments » An app would have been better » 2017-06-15 22:56:58

Replies: 0


Hope you are reading this message. Your forum has been a great place for Thousands of people for over 10 years. You have done a great job creating a forum to discuss math and science related topics well. However, in today's "smart" world, smartphones are there in hands of everyone including children (though I don't have tongue and have to use my parents').  Mobile apps have become extremely common. Every popular site has their own mobile apps since they are very much handy and it saves the time of people to 1.>Open the browser 2.>Type the address 3>Then go and login. So I would recommend your site and forum to also have a mobile app which would be very handy, and your site will also be popular since more people search the google play or appstore instead of searching on the web for an educational site. You can make apps for 1. MIF site(to learn) 2. Mathopolis(to practice) and 3. MIFF (to discuss). Maybe you can start from the first and then focus on the other 2. Hope you liked the idea. Any comments/suggestion from MIF or any other user welcome please.

#6 Re: Maths Is Fun - Suggestions and Comments » chat possible? » 2017-06-15 22:45:40


I think that this PM should be extended for everyone, including members and real members. It would be much better. Please do it in the next update.

#8 Re: Dark Discussions at Cafe Infinity » Happy Birthday, Alokananda! » 2017-06-13 22:28:42

Agnishom wrote:

Yes, I did. I did not do well in JEE advanced.

I also wrote a note on why the JEE culture is horrible

Hmm, I see. What was your AIR there?

#10 Re: Dark Discussions at Cafe Infinity » Happy Birthday, Alokananda! » 2017-06-11 23:08:43

Hmm, when you are looking for girls do you judge them by which college they are in?

Hmm Obviously.

#11 Maths Is Fun - Suggestions and Comments » What is "moderated by" » 2017-06-10 23:38:23

Replies: 4

Under a section in this forum such as Help Me, Members only, Exercises and so on, you see under that written as "moderated by ---" . Such as In Help me, you will see, moderated by Ricky, bob bundy, ganesh, mathsyperson. May I know what is that?

#12 Re: Maths Teaching Resources » Maths Books » 2017-06-10 23:27:36

Are you telling me? What should I try to learn. I know everything about logarithms.

#13 Re: Dark Discussions at Cafe Infinity » Happy Birthday, Alokananda! » 2017-06-10 23:26:19

Her username is AlokaSarkar S.

Hmm I now see.

Who is an IITian?

As far as I had thought, you were from IIT Madrs. Well is it so?

I do not think this is a good approach to dating

Why not. You can easily impress any girl if you are from such a good(or probably one of the best) college.

#15 Re: Dark Discussions at Cafe Infinity » Happy Birthday, Alokananda! » 2017-06-08 22:33:50

She is a member here with two posts.

I do not see one in the userlist. Can you send me a link of her profile.

Yes, she is my girlfriend

Hmm I see. Maybe I think an IITian(especially from a good one like Madras) can easily flirt any girl of his choice... tongue

#16 Re: Introductions » I'm a new member » 2017-06-08 22:27:06

Which state are you to from?

#17 Re: Introductions » hello i am a new member , but i want to change my username . » 2017-06-08 22:25:54

Hmm I have found a solution for your problem, tonyjaa. You can request some active moderators like bob or ganesh to send a PM to MathsIsFun. He is now the only administrator who can do that. Tell them that you want to change your username from tonyjaa to ---. MathsIsFun does not come online nowadays since he is busy with his site. But he can come if requested and change your usename. Hope it helps you.

#18 Re: Help Me ! » My daughter need some help with this » 2017-06-08 22:20:23

Monox D. I-Fly wrote:

What I have seen:
1, 2, 3, and so on = natural numbers
0, 1, 2, 3, and so on = integers
..., -3, -2, -1, 0, 1, 2, 3, ... = whole numbers

Sorry, but you interchanged whole numbers and integers.

#20 Re: Help Me ! » Determinants » 2017-06-08 22:09:20


Visiting this forum after quite a long time, due to my internet connection. Hope everything has gone on fine when I was not here.

For your question, to solve questions 16 to 20, you can either use the formula method or the substitution method. I have given below the detail.

If a line passes through the points

then there are two methods to solve it. They are

1. Formula Method:

There is a direct formula that gives the equation of a line. It is

You can directly put the variables here and get the equation. For example in your sixteenth question, the equation would be

2. The substitution method

You can jot the 2 values of x and y you got into 2 equations of the form y=mx+c and then solve them simultaneously. For example in your sixteenth question, the equation would be

So, we can then get c=-11.

Hope it helps. For more info visit the Coordinates topics in mathsisfun.

#21 Re: Help Me ! » Square root » 2017-06-01 00:01:45

Do you need help with that?

#22 Re: Dark Discussions at Cafe Infinity » Happy Birthday, Alokananda! » 2017-05-29 19:39:27

Agnishom wrote:

Alokananda is my significant other. She is 19 now.

She isn't a member here. How does others here know her? You mean she is your girlfriend?

Monox D. I-Fly wrote:

And how old are you?

As far as I know, Agnishom is 15 yrs old.

#23 Re: Help Me ! » How to calculate and express a number as the sum of three odd primes? » 2017-05-29 19:33:40

In case of to express a number as the sum of two odd primes, we divide the number by 2 and we get two numbers.  Then we add 1 with a derived number and minus 1 from another derived number.

This method doesn't always work, for e.g.54,40 and so on.

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