tag:blogger.com,1999:blog-2745689498448608006.comments2015-08-13T19:24:13.240-07:00About Mathematics and Real World Mathematics ApplicationsBill Harfordhttp://www.blogger.com/profile/06941521455903170510noreply@blogger.comBlogger19125tag:blogger.com,1999:blog-2745689498448608006.post-44578691222438498672015-08-13T19:24:13.240-07:002015-08-13T19:24:13.240-07:00I am so glad to be given a chance to read your won...I am so glad to be given a chance to read your wonderful article. Im looking forward to read more of your works and posts. You did a good job! Try to visit my site too and enjoy.<br /><br /><a href="http://www.n8fan.net" rel="nofollow">n8fan.net</a><br /><br />www.n8fan.net<br />Silvia Jacintohttp://www.blogger.com/profile/00391915680800427200noreply@blogger.comtag:blogger.com,1999:blog-2745689498448608006.post-36537692965700058152015-07-23T22:22:04.907-07:002015-07-23T22:22:04.907-07:00Time is one of the most precious and expensive thi...Time is one of the most precious and expensive thing in this world so value your time wisely because you can't flashback every wasted time at the past. Time is gold. Visit my site for more information. <br /><br /><a href="http://www.triciajoy.com" rel="nofollow">triciajoy.com</a><br /><br />www.triciajoy.comBarbie Chiuhttp://www.blogger.com/profile/15576013157820031267noreply@blogger.comtag:blogger.com,1999:blog-2745689498448608006.post-77057332863984269672014-04-16T11:02:58.600-07:002014-04-16T11:02:58.600-07:00Function is given as set of coordinates pairs. Fun...Function is given as set of coordinates pairs. Function is not only given by its closed form. Definition of function is a pair of numbers and not only formula.<br />http://www.webensource.com/mathematics/#ConceptMathFunctionBill Harfordhttp://www.blogger.com/profile/06941521455903170510noreply@blogger.comtag:blogger.com,1999:blog-2745689498448608006.post-38996450884250388362013-10-10T16:47:24.473-07:002013-10-10T16:47:24.473-07:00How would you actually compute the area without a ...How would you actually compute the area without a function to describe the shape? Could you apply this technique if you had the island outline as a set of geolocation coordinates?manzoidhttp://www.blogger.com/profile/10325791060223021459noreply@blogger.comtag:blogger.com,1999:blog-2745689498448608006.post-49557684017833475252013-05-03T02:49:13.508-07:002013-05-03T02:49:13.508-07:00Good work! Thanks for post. http:/onlineblackjacks...Good work! Thanks for post. <a href="http://onlineblackjackstories.com" rel="nofollow">http:/onlineblackjackstories</a>Paul Eisenhowerhttp://www.blogger.com/profile/09847450759954423188noreply@blogger.comtag:blogger.com,1999:blog-2745689498448608006.post-23633189129733133422013-02-15T09:14:33.029-08:002013-02-15T09:14:33.029-08:00hey ,,i just want to share what is real number in ...hey ,,i just want to share what is real number in this source<br /><br />http://www.math-worksheets.co.uk/070-tmd-what-are-real-numbers/Vincenthttp://www.blogger.com/profile/03196259308042992320noreply@blogger.comtag:blogger.com,1999:blog-2745689498448608006.post-54281466664541365642013-01-26T07:44:20.118-08:002013-01-26T07:44:20.118-08:00nice explaining. thank you.nice explaining. thank you.matematrickhttp://matematrick.blogspot.com/noreply@blogger.comtag:blogger.com,1999:blog-2745689498448608006.post-74216773631348093392012-11-08T13:58:11.656-08:002012-11-08T13:58:11.656-08:00Vow... what a great article about the Calculus.
...Vow... what a great article about the Calculus. <br /><br />Thanks. I always wonder about where the hell The limit is ? Now, I see it depends on context. <br /><br />as you say, calculating the area of the island to the limit of a grain is more than enough.<br /><br />Senapathy Thttp://www.blogger.com/profile/03915522323159563945noreply@blogger.comtag:blogger.com,1999:blog-2745689498448608006.post-79567996694021058892012-10-30T03:39:37.663-07:002012-10-30T03:39:37.663-07:00good luck
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good luck<br />\<br /><br />Deen Mohammadhttp://www.blogger.com/profile/11431845475211871467noreply@blogger.comtag:blogger.com,1999:blog-2745689498448608006.post-3118597825744739062012-07-10T23:29:48.281-07:002012-07-10T23:29:48.281-07:00I am here to share a simple definition of rational...I am here to share a simple definition of rational numbers as -A number that can be written as a simple fraction known as A rational number(i.e. as a ratio).<br />example:- 2.5 is a rational number because 2.5 = 5/2 <br /><a href="http://www.tutorcircle.com/degree-measure-of-semicircle-sdi2i.html" rel="nofollow">Degree Measure of Semicircle</a>raj kumarhttp://www.blogger.com/profile/09491471905259311284noreply@blogger.comtag:blogger.com,1999:blog-2745689498448608006.post-40630788541189575952012-06-30T08:01:20.340-07:002012-06-30T08:01:20.340-07:00You are welcome. There is another post that, to me...You are welcome. There is another post that, to me, explains the core relationship between math and other disciplines, http://explainingmath.blogspot.ca/2011/04/how-math-can-be-applied-to-so-many.htmlBill Harfordhttp://www.blogger.com/profile/06941521455903170510noreply@blogger.comtag:blogger.com,1999:blog-2745689498448608006.post-4630671070968243232012-06-30T03:37:38.430-07:002012-06-30T03:37:38.430-07:00thanks for the info!thanks for the info!charLhttp://www.blogger.com/profile/01928255392242336134noreply@blogger.comtag:blogger.com,1999:blog-2745689498448608006.post-69960790405120992712011-08-03T10:44:41.409-07:002011-08-03T10:44:41.409-07:00Good explanation, Nash. Thanks so much.
Mathemati...Good explanation, Nash. Thanks so much.<br /><br />Mathematicians take this for granted and often get annoyed when laypeople don't know it (or heed it).<br /><br />You might do an article on "definition" too. That's the one that bugs me. Engineers (sorry, dude, I see you're one) typically will "define" something by saying, "Well, it's like..."<br /><br />I got that a lot when trying to understand hydrostatic pressure.mathfourhttp://mathfour.myopenid.com/noreply@blogger.comtag:blogger.com,1999:blog-2745689498448608006.post-70012632428416687732011-02-11T17:13:59.216-08:002011-02-11T17:13:59.216-08:00oh it's great, you have to check it out. Righ...oh it's great, you have to check it out. Right up there with Fight Club and MementoAndy Rundquisthttp://www.blogger.com/profile/04900696452285397726noreply@blogger.comtag:blogger.com,1999:blog-2745689498448608006.post-34764215140077554582011-02-11T15:59:54.690-08:002011-02-11T15:59:54.690-08:00Funny cartoons, definitely! I have bookmarked it.....Funny cartoons, definitely! I have bookmarked it..<br />Have not heard about Primer...Neshahttp://www.blogger.com/profile/06941521455903170510noreply@blogger.comtag:blogger.com,1999:blog-2745689498448608006.post-19660625063441667522011-02-11T13:43:55.618-08:002011-02-11T13:43:55.618-08:00I really like the movie Primer for how it shows sc...I really like the movie Primer for how it shows scientists (or at least engineers) working. They don't explain every term but talk comfortably with each other.<br /><br />Of course the "what if" parts of that movie get a little intense but that's what the xkcd timeline is for http://xkcd.com/657/<br />-Andy (@arundquist)Andy Rundquisthttp://www.blogger.com/profile/04900696452285397726noreply@blogger.comtag:blogger.com,1999:blog-2745689498448608006.post-92194214558261085812011-01-13T00:00:12.425-08:002011-01-13T00:00:12.425-08:00Still thinking...haha. Perhaps, using the word &qu...Still thinking...haha. Perhaps, using the word "each" as in "for each second", things may be a bit more clear. Like, the speed change is 2 meters per second for each second. Or, acceleration is 9.81 m/s for each second the body is traveling in the gravitational field.Neshahttp://www.blogger.com/profile/06941521455903170510noreply@blogger.comtag:blogger.com,1999:blog-2745689498448608006.post-52580320744798226462011-01-12T21:52:08.898-08:002011-01-12T21:52:08.898-08:00Thank you, Andy, for the comment. It is an elegant...Thank you, Andy, for the comment. It is an elegant method to use mph as a unit for speed and divide it by seconds to explain acceleration. Meters per second per second is way more confusing.<br /><br />Possibly less clear example, but that might clarify a bit definition, could be to say, for instance, we pass the distance of 1 meter in the first second. Then, in the second second we passed the distance of 2 meters (total 3 meters). The speed in first second was 1m/s. The speed in second second is 2m/s. The difference in speeds between these two seconds is 1 m/s. Then, let's say, in the third second, we passed the distance of 3 meters. The speed in the 3rd second is 3 m/s, but the speed DIFFERENCE between 3rd and 2nd second is still 1 m/s. Now, for each second we keep this constant difference in speed, and, because of that we can say that after, for example, 6 seconds the speed will be 6 m/s. So, each second the speed is increasing. For how much? For 1 m/s per each second. End, eventually this will be the point of enlightenment why we say that difference in speed, i.e. acceleration is said to be 1 m/s per second, or 1 (m/s)/s or terribly confusing 1 m/(s2) (squared) :-)Neshahttp://www.blogger.com/profile/06941521455903170510noreply@blogger.comtag:blogger.com,1999:blog-2745689498448608006.post-74845212137668868032011-01-11T20:06:26.345-08:002011-01-11T20:06:26.345-08:00I like this post because you really talk about som...I like this post because you really talk about some of the huge simplifications our notation has embedded in it. Students who say I'm good at math can still struggle in physics because of exactly what you're talking about here. <br /><br />It also makes me think about more complicated combined units. I was explaining the acceleration due to gravity to a student once and I said something like "you know, 9.8 meters per second . . . per second" and she said "oh! Now I get it". Lately I've switched to 22 mph/s which makes a lot more sense to students.Andy Rundquisthttp://www.blogger.com/profile/04900696452285397726noreply@blogger.com