Linked Questions

0
votes
2answers
1k views

How do I clear all variables with subscripts? [duplicate]

Possible Duplicate: Clear complains that a variable is not a symbol or a string? Clear["Global*"]` Works for most variables, however if i do something ...
1
vote
0answers
413 views

How to assign (and retrieve) variables with subscripts? [duplicate]

I like to give subscripts to my variable names when the variables are related. I.e., Subscript[r, i] = 3 3 A problem arises when I later assign ...
0
votes
0answers
80 views

How to Clear a symbol with subscript in Mathematica? [duplicate]

Possible Duplicate: Clear complains that a variable is not a symbol or a string? I want to clear $\lambda_0$ which is assigned to be $\lambda_0=1$. From the reference here, Clear ...
84
votes
2answers
3k views

What is the distinction between DownValues, UpValues, SubValues, and OwnValues?

When reading through the documentation, you often encounter the phrases DownValues, UpValues, ...
49
votes
4answers
2k views

Using the Mathematica front-end efficiently for editing notebooks

Background: I have used Vim for 15+ years. There is a certain "one"-ness with the editor one achieves. Emacs users also experience this. Notepad users do not. My current interaction with the ...
5
votes
6answers
1k views

bar and hat only apply to certain letters

(I'm navigated from stackoverflow.com where I asked almost the same question) I'm a beginner in Mathematica. Like shown in the image below, I'm trying to put hat ...
13
votes
1answer
3k views
4
votes
3answers
537 views

How to Clear variables with apostrophe?

An apostrophe ' is often used when we want to distinguish two variables. For example, if we already have a variable t and we may ...
9
votes
1answer
284 views

Selectively clear DownValues

How can I clear a subset of a symbol's DownValues ? For example, suppose I have created some DownValues for $f$ like this: ...
3
votes
4answers
148 views

Pack Solve results into a vector

I am currently using a really easy function to get the eigenvectors of a corresponding eigenspace: ...
4
votes
2answers
147 views

Error entering equation in DSolve

I entered a command incorrectly as follows: DSolve[{y'[x]=y[x]},y[x],x] I am now experiencing: ...
3
votes
3answers
103 views

Can I put subscripted parameter values into a package?

When defining packages, can I put parameter values alone or along with functions into a package in subscripted form? ...
2
votes
2answers
211 views

How to clear variables in a manipulate without enabling dynamic content?

I have a series of variables that will plot the number of straight segments along a curve, thanks to the help from here on one of my previous questions. I can create a working Manipulate command from ...
1
vote
2answers
295 views

How to define a vector with automatically added symbolic elements with subscripts

I want to define a vector lets say k containing elements Symbolize[Subscript[k, 1]], k2, k3 ... etc. When I define lets say k4 . I want the symbol automatically added to vector k. Something like ...

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