Top "Numeric" questions

How to create a numeric vector of zero length in R

I wonder, how can I create a numeric zero-length vector in R?

r vector numeric zero

Evaluating string "3*(4+2)" yield int 18

Is there a function the .NET framework that can evaluate a numeric expression contained in a string and return the …

c# string math numeric evaluate

Why SQL Server throws Arithmetic overflow error converting int to data type numeric?

I have an error being thrown by SQL Server Management Studio when running this code: declare @percentage numeric(3,2) set @percentage = …

sql-server variables types numeric

Right way to convert data.frame to a numeric matrix, when df also contains strings?

I have a data frame taken from a .csv-file which contains numeric and character values. I want to convert this …

r if-statement matrix numeric

How to convert a number to string and vice versa in C++

Since this question gets asked about every week, this FAQ might help a lot of users. How to convert an …

c++ string type-conversion numeric c++-faq

How to convert Varchar to Double in sql?

I have problem with my query when I was trying to convert the varchar field to double (numeric). I have …

mysql sql numeric varchar

IsNumeric function in c#

I know it's possible to check whether the value of a text box or variable is numeric using try/catch …

c# function parsing try-catch numeric

What's the difference between integer class and numeric class in R

I want to preface this by saying I'm an absolute programming beginner, so please excuse how basic this question is. …

r class object integer numeric

PHP: Best way to check if input is a valid number?

What is the best way of checking if input is numeric? 1- +111+ 5xf 0xf Those kind of numbers should not …

php input validation numeric

PHP - Get array value with a numeric index

I have an array like: $array = array('foo' => 'bar', 33 => 'bin', 'lorem' => 'ipsum'); echo native_function($array, 0); // bar …

php arrays get indexing numeric