formula

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efficient renaming of variables in first-order formulae

edit2: Taking the hint that de Bruijn indices might be easier to work with, I\'ve reformulated much of the internal representation of formulae to use a mixed de Bruijn representation ala Connor McBrid[详细]

2023-04-13 03:18 分类：问答
Mathematica-like (LaTeX) typesetting for own CAS application

As I am using Mathematica a lot I got the idea to write a small and free CAS which just exposes a very small subset of necessary functions and packages to be used and I want to present the results in[详细]

2023-04-13 00:20 分类：问答
Using column numbers not names in lm()

Instead of something like lm(bp~height+age, data=mydata) I would like 开发者_运维技巧to specify the columns by number, not name.[详细]

2023-04-12 07:40 分类：问答
Excel cell only updates after a second cell has been changed

Update: File Upon request, I am including the link to the file: here. File no longer available I have transformed my original data into a game-like context, in which the sheet keeps track of points[详细]

2023-04-10 19:42 分类：问答
Is there any way to edit an existing Excel file using Python preserving formulae?

I am trying to edit several excel files (.xls) without changing the rest of the sheet. The only thing close so far that I\'ve found is the xlrd, xlwt, and xlutils modules. The problem with these is it[详细]

2023-04-10 17:53 分类：问答
NHibernate - Is there a way to map a formula that uses sql function and returns Table?!

I have a sql function that returns table and I need to map it to a collection i\'m trying with formula but as far as i can tell formula is good only to single returned value (right?!?)[详细]

2023-04-10 04:51 分类：问答
Rolling dice application for iPhone apps

I am making an iPhone dice application and I wanted to create a button so that if I click it, it will generate a random number between 1 and 6 on the UITextField.[详细]

2023-04-10 01:09 分类：问答
How to write in two fields at a time in objective-c? [closed]

Closed. This question needs to be more focused. It is not currently accepting answers. Want to improve this question? Update the question so it focuses on one problem only by editing this po[详细]

2023-04-09 11:16 分类：问答
JPA Hibernate manyToMany with non-unique key

I have two entities (tables): Department and Person. Both tables have a field CODE which is not unique.[详细]

2023-04-09 06:14 分类：问答
First Android App

I\'m fairly new to the whole android scene, and I decided to start off with something simple, a Celsius to Fahrenheit converter. Here\'s the block of code I\'m using to do the actual math (x-32)*5/9 w[详细]

2023-04-07 14:40 分类：问答