Questions tagged [free-form-input]

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1answer
43 views

How to make an input for a Piecewise by Palettes?

How to make the input using the { as it is shown in the top of the question? I mean, how can make the array? By default in the "special character section" appears an option 2x2 (Typographic ...
1
vote
1answer
69 views

From Free-Form linguistic input to function expression to calculate spheroid surface

I need to calculate the surface area of an oblate spheroid. My first step is to get the surface equation from Free-Form input. But I have trouble converting to a WM function and replace the focus ...
0
votes
0answers
74 views

Keyboard Interacting problem using Free-form Wolfram Language input

I'm trying to perform a Free-form Wolfram Language input. I touch CTRL+= but it doesn't do anything It is strange because the key = works fine Is there another way of using that function? ...
14
votes
1answer
246 views

What to expect from Interpreter[“Expression”]?

Sometimes it works ok Interpreter["Expression"]["1"] 1 sometimes not: Interpreter["Expression"]["Graphics[{}]"] Why ...
5
votes
4answers
218 views

Determine whether some expression contains a symbol doing nothing?

I have expression like this: expr = xuyz; then Head[expr] = xuyz But I wanted the product of four factors, so it should ...
0
votes
1answer
315 views

How can I get Mathematica to show me how to integrate an integral? [closed]

I tried using the free input to show me how to integrate the following integral but it didn't show me the steps. Solve with steps the integral of x*(2*a^2)*arccos(x/(2*a))-(x^2/2)*sqrt(4a^2-x^2) in ...
2
votes
1answer
112 views

Free form input in terminal?

I am using Mathematica 8. Is there a way to use free form input through the terminal? Using the notebook is not an option for me. I want to do things like "optimize x^2 on [1, 4]" without having to ...
2
votes
2answers
385 views

How to use the free form in mathematica 10 to give me as input the tempratures in a specific place?

How to use the free-form in mathematica to give me the tempratures in a specific place in the world from specific timeline? What should write in the command line? Thanks.
11
votes
2answers
821 views

Difference between = and Ctrl + =

What is a difference between $\textbf{=}$, and Ctrl + $\textbf{=}$? For instance there are some examples, but result is same. and
3
votes
1answer
204 views

How to get free-form linguistic input to act on a previous output?

It seems that Mathematica is capable of taking free-form input that acts on previous outputs (see "separate color channels"), but I'm having trouble getting it to work in my case. I've got ...
2
votes
0answers
224 views

Substitute for 'InputField' in Wolfram Demonstration

My application relies on the ability of users to enter text, and has several settings with a huge range of potential values best entered as strings (to comply with Wolfram's admonition to "choose your ...
1
vote
1answer
116 views

Importing data from files designated in an InputString dialog box

I want to use a loop to input several strings which will be used to import a file. The number of strings to be imported will vary, so the loop should recognize the number of strings and stop after ...
9
votes
1answer
385 views

How can I disable the “convert to freeform linguistic input” dialog box?

So I'm putting in some function, busy typing away. Then after I've entered some text, I pause for a few seconds. In this time, the notebook pops up the question "Convert to Free-Form Linguistic ...
4
votes
0answers
509 views

Does Mathematica compute free-form-input on Wolfram servers?

I've just started to use Mathematica and I'm using the free-form input a lot. The computation time for simple problems seems to take a lot of time and my CPU isn't really used at all. I first thought ...
2
votes
4answers
227 views

How to limit the argument to binary type in mathematica function

How do I write a function that only takes binary input?
5
votes
1answer
384 views

Using free-form linguistic input in a dynamic input field

I've been playing around with dynamic input fields; here's a basic example, which just consists of an input field where the user can enter a function and then a button that can be clicked to graph the ...
2
votes
1answer
730 views

How to apply a free-form input Function using InputField

I am trying to take a free-form input Function to create a list using NestList. ...
6
votes
1answer
487 views

How to import non-text data from std input in a Mathematica script?

Or maybe a better question is - how can I get a stdin stream? I need to run on Linux. I did look at Reading from STDIN, or: how to pipe data into Mathematica, but ...
2
votes
1answer
612 views

3rd derivative keyboard shortcut

For a long time i've evaluated D[f[t],{t,3}] to get this power-like derivative thing: $$f^{(3)}(x)$$ Is it possible to obtain same through an easier keyboard ...
6
votes
1answer
347 views

Under what conditions does FinancialData return a ::notent message?

I tried retrieving FinancialData for a few companies but when I tried doing it for NTDOY, I couldn't. As of 25/12/2012, querying ...
37
votes
3answers
2k views

Automatically check student answers in tests

I am a physics teacher and I am looking for a way to create homework assignments within Mathematica so that each problem has an input field that students can use to check their answers. For example, ...
11
votes
6answers
8k views

Notation of partial derivative

I want to write partial derivatives of functions with many arguments. Why is it that when I type f[x,y] ctrl+6 (0,1) it turns out to be bad syntax? The output of ...
9
votes
3answers
876 views

Ctrl+= opens the alpha input instead of below-script

When trying to type "traditional style" inputs such as integrals or sums, I follow the tutorial and type Esc sum Esc   Ctrl+= n=1  Ctrl+% 10 whatever However, when I type Ctrl+= it opens ...
4
votes
2answers
434 views

How to extract and assign output of Free-Form input to a variable?

Selecting a Free-Form input cell with the mouse I can query something like: convert 1 atm to pascals and get as a result ...