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Cannot open include file 'afxres.h' in VC2010 Express
...nks, then i get the error: error RC2104: undefined keyword or key name: IDC_STATIC
– clamp
Aug 25 '10 at 13:16
@clamp:...
Database sharding vs partitioning
...databases. Sharding is one specific type of partitioning, part of what is called horizontal partitioning.
Here you replicate the schema across (typically) multiple instances or servers, using some kind of logic or identifier to know which instance or server to look for the data. An identifier of th...
App Inventor 2 如何接入ChatGPT：国内访问OpenAI的最佳方式 · App Inventor 2 中文网
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通过ApiKey接入
ChatGPT ApiKey接入：https://platform.openai.com/api-keys
如果测试报错：Some(“insufficient_quota”)，如下：
说明ApiKey配额不足，需要绑定信用卡进行扣费才能正常使用（国内的卡不行）。
https://platform.open...
好物商店：参考淘宝的原生应用案例 · App Inventor 2 中文网
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SHA-256
业务检查
技能
041bfb3bcf3f1ddb508262386dd5b8920eb71347726fe0d87c459845e2044dd5
14 项通过
助手同源
ee066ad0745bee4486537acb31dc10c6c3c956443f7b8f8da55a80ccf5960516
14 项通过
🧩 原...
JavaScript check if variable exists (is defined/initialized)
...
You want the typeof operator. Specifically:
if (typeof variable !== 'undefined') {
// the variable is defined
}
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Calculate distance between two points in google maps V3
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@EmanuelePaolini - Mathematically, atan2(sqrt(a),sqrt(1-a)) = asin(sqrt(a)) = acos(sqrt(1-a)), but the atan2 version remains numerically better conditioned for all values of a.
– ChrisV
Dec 19 '14 at 18:00
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Definition of “downstream” and “upstream”
...ry. Information flowed "downstream" to you.
When you make changes, you usually want to send them back "upstream" so they make it into that repository so that everyone pulling from the same source is working with all the same changes. This is mostly a social issue of how everyone can coordinate thei...
Converting double to string
...
double total = 44;
String total2 = String.valueOf(total);
This will convert double to String
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间歇训练：参考Keep的原生应用案例 · App Inventor 2 中文网
...线
SHA-256
业务检查
技能
55bf0d5f89b52bf573cf702436c5d3cec8736d1d1659857742e1e3af87b377f2
7 项通过
助手同源
df37dc08e59e909780176bf1ad9d08ddaf47ebfa79fd0d2c75ed8f91c6ab41d4
7 项通过
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Calculate distance between 2 GPS coordinates
...y solution:
#include <math.h>
#include "haversine.h"
#define d2r (M_PI / 180.0)
//calculate haversine distance for linear distance
double haversine_km(double lat1, double long1, double lat2, double long2)
{
double dlong = (long2 - long1) * d2r;
double dlat = (lat2 - lat1) * d2r;
...