How to consider rude(?) some not so much. Use natural-language input or function formatting. Do not confuse with Map (/@) or Apply(@@). Root objects are used to represent complex numbers and can be calculated to the required precision: If you apply Re, Im and Abs to a Root-object a new Root-object is generated automatically: Knowing that Root-objects can contain parameters they work perfectly together with other Mathematica functions: site design / logo © 2020 Stack Exchange Inc; user contributions licensed under cc by-sa. Asking for help, clarification, or responding to other answers. The word hash predates these other names (but wasn’t very popular until recently). Is the word ноябрь or its forms ever abbreviated in Russian language? Best example is this: f[x_]:=x+5. The scientists at Bell Laboratories modified the telephone keypad in the early 1960s and added the # symbol to send instructions to the telephone operating system. How to write an effective developer resume: Advice from a hiring manager, “Question closed” notifications experiment results and graduation, MAINTENANCE WARNING: Possible downtime early morning Dec 2/4/9 UTC (8:30PM…. Thanks for contributing an answer to Stack Overflow! How to solve this puzzle of Martin Gardner? What do the #s mean, and how exactly does T depend on Tn? Or maybe easier: 1) Highlight 2) Press F1 3) Profit ? This phrase arose in Britain because pound sign could easily be confused with the British currency. Where Did The Strange Expression “Hair Of The Dog” Come From? Did genesis say the sky is made of water? 1: The pound sign. We shall not delve into the reasons for this, but the variety of symbols used in equations also happen to add to the dread. Utter the word mathematics and even grown ups are known to shudder at the mere mention of it! Is it too late for me to get into competitive chess? Dear Soufiane, thanks. And, once you click on that marked topic, you’ll likely see all public posts about it. When you release the Alt key, the symbol will appear. Can it be justified that an economic contraction of 11.3% is "the largest fall for more than 300 years"? Why is the concept of injective functions difficult for my students? Hash itself is a relatively new word and is just one of the many names of the pound sign. Then what does Root[-1 - 2 #1 - #1^2 + 2 #1^3 + #1^4 &, 1] exactly mean? People can use hashtags to search for posts with a specific theme. It must always be followed at the end by &. Mathematica Stack Exchange is a question and answer site for users of Wolfram Mathematica. This name came to be because the symbol comes from the abbreviation for weight, lb, or libra pondo, literally “pound by weight,” in Latin. Windows ALT codes based on Windows Code Page 1252 The above command then becomes: You can chain @ as such: Reverse@Sort@DeleteDuplicates[...]. What Do The Most Well-Known Website Names Mean? NumLock needs to be enabled. It's just the first root of the polynomial. In Mathematica an irreducible higher-order polynomial will be solved, using Root-abjects. Using public key cryptography with multiple recipients. 2. And, where did it come from? Then the expression x+5 will be evaluated using this new variable/value. Discover The Origins Of These Cooking Tool Names. So, (someValue + 5) becomes (#+5)&, where & says "I'm a pure function, and will work with whatever you send me", and # says "I'm the parameter (or a parameter list) that was sent to the pure function". Why use "the" in "than the 3.5bn years ago"? 1. What happened next is not entirely clear. Tutorial for Mathematica & Wolfram Language. Hashtag use is only permitted on Twitter. . Then what does Root[-1 - 2 #1 - #1^2 + 2 #1^3 + #1^4 &, 1] exactly mean? This field is for validation purposes and should be left unchanged. If you see something that says “#WordoftheDay,” the tweet or post has something to do with Word of the Day. Here’s how to type a hash on a Mac keyboard. Another former employee claims it was a nonsense word, meant as a joke. You can also use #1, #2, #3, etc, if you're sending it more than 1 parameter. It only takes a minute to sign up. A typical Mathematica notebook containing text, graphics and Mathematica expressions. Is it too late for me to get into competitive chess? Mouse-over parts of the tree to identify the syntax in question, in this case Slot. The Dark Web: Do You Know The Difference? It only takes a minute to sign up. In sequence models, is it possible to have training batches with different timesteps each to reduce the required padding per input sequence? What does commonwealth mean in US English? Can this WWII era rheostat be modified to dim an LED bulb? Since the ascent of social media and its new prominence in everyday life, hashtag has become the favored name. Like when posting a 'hilarious' status where you hashtag is humorous. The term “hashtag” was nonexistent at the time he made that tweet. My function is a simple polynomial: Now I tried to find T as a function of Tn, for which I used Solve: Plotting it is no problem, which I did by using this: But the problem is that I have no idea what the hashtags in the result of Solve denote, and how I should write the function T(Tn). But the problem is that I have no idea what the hashtags in the result of Solve denote, and how I should write the function T(Tn). #1 represents the first argument in a pure function. (Links to more info on the different meanings of. It’s actually a made-up word, invented in the same laboratories where the telephone came from. On US Apple keyboards, hold down the Shift key and press the number 3 key. What is the meaning of prepended double colon “::”? Some of its names are common . Enter your email for word fun in your inbox every day. A hash has referred to stripes on military jackets since as early as 1910. What if the P-Value is less than 0.05, but the test statistic is also less than the critical value? . Redefine your inbox with Dictionary.com updates! For example, Mathematica recognizes Sumas the symbol representing the sum function, but does not recognize sumas the sum function. Side note: f=5 and f[x_]:=5 both work with a "Symbol" f. f can be referred to as a function, when square brackets are used to extract its value, and f[x_] can peacefully co-exist with f[x_,y_] without overriding each other.
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