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计算统计特征（正态分布）函数及实例 - C/C++ - 清泛网 - 专注C/C++及内核技术
...AX_VAR;
double _ave;
//double _var;
double _sam_stdev;
double _all_stdev;
double _sum;
double _sum_2;
int _count;
double _min_v;
double _max_v;
StdevInfo()
: _ave(0.0)
//, _var(MAX_VAR)
, _sam_stdev(sqrt(MAX_VAR))
, _all_stdev(0.0)
, _sum(0.0)
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How to find the nearest parent of a Git branch?
...al) are just transient labels that point to specific commits in the continually growing commit DAG. As such, the relationship between branches can vary over time, but the relationship between commits does not.
---o---1 foo
\
2---3---o bar
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Delete all data in SQL Server database
How I can delete all records from all tables of my database? Can I do it with one SQL command or I need for one SQL command per one table?
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How do I clone a subdirectory only of a Git repository?
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EDIT: As of Git 2.19, this is finally possible, as can be seen in this answer.
Consider upvoting that answer.
Note: in Git 2.19, only client-side support is implemented, server-side support is still missing, so it only works when cloning local repositories...
Logical operators (“and”, “or”) in DOS batch
How would you implement logical operators in DOS Batch files?
12 Answers
12
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Functional, Declarative, and Imperative Programming [closed]
...ve expression is the referential transparency (RT) of its sub-expressions. All other attributes are either shared between both types of expressions, or derived from the RT.
A 100% declarative language (i.e. one in which every possible expression is RT) does not (among other RT requirements) allow th...
How to find out what group a given user has?
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This one shows the user's uid as well as all the groups (with their gids) they belong to
id userid
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Synchronizing a local Git repository with a remote one
...-p does the same - 'git pull runs git fetch with the given parameters and calls git merge to merge the retrieved branch heads into the current branch' - git-scm.com/docs/git-pull
– jobwat
Oct 27 '14 at 21:37
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How to create index in Entity Framework 6.2 with code first
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Well 26.10.2017 Entity Framework 6.2 was officially released.
It includes a possibility to define indexes with ease via Fluent API. Ho it is to use was already announced in the beta of 6.2.
Now you can use the HasIndex() method, followed by IsUnique() if it should be an ...
How to prune local tracking branches that do not exist on remote anymore
...getting the first column of that output which will be the branch name. Finally passing all the branch names into the delete branch command.
Since it is using the -d option, it will not delete branches that have not been merged into the branch that you are on when you run this command.
Also remember...