currency | 易学教程

How do I preserve my float number in ruby

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问题 So I'm trying some code out to convert numbers into strings. However, I noticed that in certain cases it does not preserve the last two decimal places. For instance I type 1.01 and 1.04 for addition and I get back 2.04. If I type just 1.05 it preserves the number and returns it exactly. I get whats going on things are being rounded. I don't know how to prevent it from being rounded though. Should I just consider sending (1.01+1.04) to self as only one input? Warning! I haven't tried this yet

Money Data Type Precision - SQL Server (SSMS)

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问题 In sql server management studio, data type- money, when I enter an amount with a decimal it automatically adds on zeros to fill up to the hundredths. How can I determine the amount of spaces after the decimal? 回答1: The number of zeroes behind the dot is called the precision of a datatype. The money data type has a fixed precision: with accuracy to a ten-thousandth of a monetary unit. That's five digits behind the dot. If you'd like a different precision, use the decimal datatype. Some

Where can I find updated, live exchange rates?

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问题 How do I link live currency exchange rates to my iPhone app? First, anyone know any sites where I can get the exchange rates? And second, how do I link that to my app? I want to do what this app does. http://the-dream.co.uk/currencee/ 回答1: Here is a blog post about this, however to recap, if you use TBXML you can do it with the methods below. They do the following: Assume you have made a mutable dictionary object as a class property called exchangeRates Set's EUR as the base rate (value of 1

Using non supported currencies on Paypal

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问题 I have a site with a paypal module. The problem is that the site use as currency "PEN" (Peruvian currency) but it's not supported by Paypal. Is there any way to I gate the supported currencies of paypal or passing the amount in PEN and paypal convert it automatically to USD perhaps? 回答1: I'm afraid you are underestimating the meaning of "unsupported". Paypal demands that you only use a supported currency throughout the whole payment transaction, and they aren't going to convert unsupported

Convert amounts where input is “100K”, “100M” etc

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问题 I am currently working on a site where i need to convert amounts with letters behind it, example: 100M = 100.000.000 I have created a way to do this the other way, from: 100.000.000 = 100M Here is my current function: function Convert($Input){ if($Input<=1000){ $AmountCode = "GP"; $Amount = $Input; } else if($Input>=1000000){ $AmountCode = "M"; $Amount = floatval($Input / 1000000); } else if($Input>=1000){ $AmountCode = "K"; $Amount = $Input / 1000; } $Array = array( 'Amount' => $Amount,

Currency formatting in .NET

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问题 I'm trying to get a grip on how currency formatting works in the .NET framework. As I understand it, Thread.CurrentCulture.NumberFormatInfo.CurrencySymbol contains the local culture's currency symbol. But as I see it, in the real world there's not a clear 1-to-1 relation between a specific culture and the currency symbol. For instance, I may be located in UK but I bill my invoices in Euro. Or I may live in Iceland and receive invoices from US suppliers in USD. Or I may live in Sweden but my

Homework - Operator-Overloading Currency Class - Stuck/Lost

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I need help with creating Operator-Overloaded functions please. I tried 2 but I am stuck. (Thank you all for your help last time! I was able to completely finish :] ). Problem 1: The operator+(const Currency &rhs) will add the 2 dollar amounts, but not the 2 cent amounts, though it keeps the cents from one of them. So, 40.20 + 40.20 = 80.20 (40 Dollars and the 20 cents are entered in separately being "int", wrote it as above for readability display purposes...sorry for the confusion!) // Removed subtraction (Program adds/subtracts correctly if overload operators are removed). Problem 2: Before

Rails currency exchange gem that works?

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问题 Just wondering if anyone has used a currency exchange ruby gem that gets exchange rates from an external api and actually works. I have tried the following gems but have not been able to get any of them to function as described: goog_currency, yahoo_currency, google_currency, yahoo_finance_currency One of these uses deprecated code and hence does not work correctly. I am just trying to display a currency exchange rate in a rails view which has been grabbed from an external api. I have also

Currency conversion in pandas

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问题 I am trying to convert values with different currency to "USD" currency. I tried easymoney and CurrencyConvertor packages but those do not seem to work with dataframe python. It seems working if I do conversion row by row using iloc but that is taking an awful lot of time. from easymoney.money import EasyPeasy ep = EasyPeasy() ep.currency_converter(df_train['goal'], from_currency=df_train['currency'], to_currency="USD") Error: TypeError: invalid type comparison 回答1: You need apply with axis=1

Currency library for Java [closed]

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问题 As it currently stands, this question is not a good fit for our Q&A format. We expect answers to be supported by facts, references, or expertise, but this question will likely solicit debate, arguments, polling, or extended discussion. If you feel that this question can be improved and possibly reopened, visit the help center for guidance. Closed 6 years ago . Is there some currency converter library that enables to convert a value from a specific currency to another? Or should I implement my