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1. Top results related to what is the currency exponent in iso 4217 program that allows

   • ISO 4217 - How Do I retrieve the numeric value(840) for the currency code "USD" in .NET?

     Top Answer

     Answered Jul 20, 2009 · 4 votes

     The ISO3166 currency codes (840 for U.S. Dollar, etc.) are not available in the .Net framework. All you can get from the RegionInfo class is the ISO4217 currency code (ISOCurrencyCode) (e.g. USD) and the CurrencySymbol (e.g. $).

     You will, I'm afraid, have to download a list of the data and do the mapping yourself.

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     1/5

   • What is the best compression algorithm that allows random reads/writes in a file?

     Top Answer

     Answered May 23, 2017 · 29 votes

     I am stunned at the number of responses that imply that such a thing is impossible.

     Have these people never heard of "compressed file systems", which have been around since before Microsoft was sued in 1993 by Stac Electronics over compressed file system technology?

     I hear that LZS and LZJB are popular algorithms for people implementing compressed file systems, which necessarily require both random-access reads and random-access writes.

     Perhaps the simplest and best thing to do is to turn on file system compression for that file, and let the OS deal with the details. But if you insist on handling it manually, perhaps you can pick up some tips by reading about NTFS transparent file compression.

     Also check out: "StackOverflow: Compression formats with good support for random access within archives?"

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     2/5

   • What is the C# data type that allows complex and imaginary numbers?

     Top Answer

     Answered Jan 25, 2018 · 7 votes

     If you want to support operations on complex numbers, you should consider using System.Numerics.Complex

     Complex c = Complex.Sqrt(-1);Console.WriteLine(c + 1);-

     For documentation on this type see here

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     3/5

   • What is the structure of Field No. 54 (P54) in the the ISO 8583 Standard

     Top Answer

     Answered Oct 11, 2014 · 5 votes

     The values of the types of accounts and amount types and the conditions in which they are allowed vary by each instance and variation of ISO-8583 but the standard format is the following:

     The data element breakdown, occurring up to six times for a total length up to a total length of 120.

     • Position Data 1-2
     • Account Type (n 2) 3-4 (Must match DE003 format)
     • Amount Type (An 2) 5-7 (See Table Below for a sample of SOME of the values)
     • Currency Code (n 3) 8-20 (ISO-3166-1 Numeric, just like DE049-DE051)
     • Amount (x + n 12)

     The amount must not be greater than 999999999. "X" must be 0, C, or D. C or 0 = Credit amount and D = Debit Amount

     Some of Amount Types others really vary by specification and though these are all numeric the Healthcare transactions are AlphaNumeric values in the VISA specification for example. Note that most of these are actually not commonly used in PIN or Debit transactions except 01, 02, 40-43, 57, 58, and 91.

     ISO Code Description

     • 00 Unknown
     • 01 Account ledger balance
     • 02 Account available balance
     • 03 Amount owing
     • 04 Amount due
     • 05 Available Credit Line
     • 06-10 Reserved for ISO use
     • 11-15 Reserved for national use
     • 16 Credit line
     • 17 POS balance
     • 18-19 Reserved for private use
     • 20 Amount remaining this cycle
     • 21-30 Reserved for ISO use
     • 31-35 Reserved for national use
     • 36-39 Reserved for private use
     • 40 Amount Cash / Cash Back / Negotiable Item including Scrip
     • 41 Amount goods and services
     • 42 Amount Check (Deposit Only)
     • 43 Amount Cash (Deposit Only)
     • 42-50 Reserved for ISO use
     • 51-55 Reserved for national use
     • 56 Hold amount
     • 57 Pre-Authorized Amount.
     • 58 Authorized amount. (Used for Response Code DE039 = 10 Authorized fora Different Amount)
     • 59 Floor Limit
     • 60-79 Reserved for ISO use
     • 80-89 Reserved for national use
     • 91 Originally Requested Amount transaction in the currency amount of DE049.
     • 92-93 Reserved for private use

     Let me know if you need more explanation.

     Christopher

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     4/5

   • What is the error in this menu driven program to input records of students in a binary file (name,roll,age,marks) and perform the following operations

     Top Answer

     Answered Sep 29, 2020 · 0 votes

     Your issue is that you are reading the contents but not storing them again. But this code is yelling for some auxiliar functions so that everything stays clean. Lets start making some helper functions and solving the issue in the meanwhile.

     We are requesting several integers from the user so lets create a function that handles this. It will return a special number (defaults to 0) in case we can't convert what the user provided to an integer.

     def input_integer(request: str, *, error: int = 0) -> int: try: return int(input(request)) except ValueError: # If we can't convert to integer return error return error

     Note: if you are not used to the type annotations, they mean that the input_integer function expects a string argument (which is the message to request the integer) and a keyword integer argument that allows to configure which integer to return as an error, defaulting to 0. The function returns an integer. By making this annotations the reader will have better understanding of what the function does and IDEs will detect some type mismatch errors, but they will not be evaluated at runtime.

     Okey so we are going to print a menu, lets also make a function for it. Actually, we are going to make a function that returns a function. The outter funtion will build the menu itself, and the returned function will print it and request for the user input.

     def menu_factory(options: List[str], input_request: str) -> Callable[[], int]: # Number of options options_number = len(options) # Menu text menu_text_lines = ["MENU:"] for i, option in enumerate(options): menu_text_lines.append(f"\t{i+1}. {option}") menu_text = "\n".join(menu_text_lines) # Input request text input_request += f" (1..{options_number}): " # Create the function that will be called to print the menu def menu_function() -> int: # Print the menu text we have previously built print(menu_text) # Get the input from the user until he gives a valid one choice = input_integer(input_request) while not(0 < choice <= options_number): print(f"It must be a number between 1 and {options_number}.") choice = input_integer(input_request) # Return the choice of the user return choice return menu_function

     As you can see, functions can be defined inside other blocks and returned as any other object would have been. The function accepts a list of strings which are the options and an additional string to request the user for input. It will build the full messages adding the numbers and prepare the function that we will later call. In this case, the menu_factory function would be called like this:

     menu = menu_factory( [ "Create Binary File.", "Display Binary File.", "Search for a given roll number.", "Input roll number and mark, Update mark of the student.", "Delete a record for a given roll number.", "Display the details of the students getting average marks " "more than 80.", "Append new records at the end of file.", "Exit", ], "Choose a command")

     And now, menu() will print the menu, request the user choice and return that choice after validating it is a proper number in the correct range.

     The next thing we will have is a class to store the information of each student instead of a list. It will have 4 attributes (name, roll number, age and mark). The constructor (__init__) will just save them. I also added a __repr__ that tells python how to print Student objects. The __slots__ at the top of the class definition is a memory optimization. By setting __slots__ we tell the class which exact attributes it will have instead of having to store them as a generic dictionary. If you remove this line it will still work exactly the same, but each student you load will consume a little bit more RAM.

     class Student: __slots__ = 'name', 'roll_no', 'age', 'mark'- def __init__(self, name: str, roll_no: int, age: int, mark: int) -> None: self.name = name self.roll_no = roll_no self.age = age self.mark = mark def __repr__(self) -> str: return f"Student<name={self.name}, roll_no={self.roll_no}, " \ f"age={self.age}, mark={self.mark}>"

     We are pretty much done but there is another thing that we will do quite a bunch of times, reading and writting to the file. Lets create some auxiliar functions for that to. The read_file function will create a list of Stundets. The first try: ... except FileNotFoundError: pass block detects if the file can't be found (retunring an empty list of Students). The with open(...) as f: ... if a better approach than calling f.close() afterwards. Python itself will close the file when you get out of that with block, doesn't matter if it is due to an exception or any other reason. So basically we know for sure that the file will be closed no matter what. The inner try: ... except EOFError: break is to detect when have we ended reading the file and get out of the infinite while True: ... loop.

     def read_file(path: str) -> List[Student]: content = [] try: with open(path, 'rb') as f: while True: try: content.append(pickle.load(f)) except EOFError: # Break the loop when reached end of the file break except FileNotFoundError: # Don't raise if the file doesn't exist pass return content

     The write function is pretty simple, open the file, write the content, done. Same goes for append.

     def write_file(path: str, content: List[Student]) -> None: with open(path, 'wb') as f: for row in content: pickle.dump(row, f)def append_file(path: str, content: List[Student]) -> None: with open(path, 'ab') as f: for row in content: pickle.dump(row, f)

     So now we have an input_integer function to read integers from the user, a menu_factory function that will build the menu, a Student class that will store each student's info, and a read_file, write_file and append_file functions. We can start implementing our logic. I'm going to create a dictionary of functions where the key is going to be the integer choice and the value are the functions that we will call to implemnent that option. You will see how choice_X functions will be super simple now that we have set up those auxiliary methods.

     import picklefrom typing import Callable, List-FILENAME = 'student.bat'def input_integer(request: str, *, error: int = 0) -> int: # ...def menu_factory(options: List[str], input_request: str) -> Callable[[], int]: # ...class Student: # ...def read_file(path: str) -> List[Student]: # ...def write_file(path: str, content: List[Student]) -> None: # ...def append_file(path: str, content: List[Student]) -> None: # ...if __name__ == '__main__' : # Create the menu function from the factory menu = menu_factory( [ "Create Binary File.", "Display Binary File.", "Search for a given roll number.", "Input roll number and mark, Update mark of the student.", "Delete a record for a given roll number.", "Display the details of the students getting average marks " "more than 80.", "Append new records at the end of file.", "Exit", ], "Choose a command" ) def choice_1() -> None: students = [] for i in range(1, input_integer("How many entries? ") + 1): print(f"Entry number {i}:") students.append(Student( input("\tName: "), input_integer("\tRoll number: "), input_integer("\tStudent age: "), input_integer("\tAverage mark: "), )) write_file(FILENAME, students) def choice_2() -> None: print(read_file(FILENAME)) def choice_3() -> None: roll_no = input_integer("Roll number of the student to find: ") for student in read_file(FILENAME): if student.roll_no == roll_no: print(student) break else: # This will only be executed if no break was found print(f"Roll number {roll_no} not found in data file.") def choice_4() -> None: roll_no = input_integer("Roll number of the student to update: ") students = read_file(FILENAME) for i, student in enumerate(students): if student.roll_no == roll_no: break else: # This will only be executed if no break was found print(f"Roll number {roll_no} not found in data file.") return students[i].mark = input_integer("New average mark: ") write_file(FILENAME, students) def choice_5() -> None: roll_no = input_integer("Roll number of the student to delete: ") students = read_file(FILENAME) for i, student in enumerate(students): if student.roll_no == roll_no: break else: # This will only be executed if no break was found print(f"Roll number {roll_no} not found in data file.") return del students[i] write_file(FILENAME, students) def choice_6() -> None: for i, student in enumerate(read_file(FILENAME)): if student.mark >= 80: print(student) def choice_7() -> None: students = [] for i in range(1, input_integer("How many entries? ") + 1): print(f"Entry number {i}:") students.append(Student( input("\tName: "), input_integer("\tRoll number: "), input_integer("\tStudent age: "), input_integer("\tAverage mark: "), )) append_file(FILENAME, students) menu_callbacks = { 1: choice_1, 2: choice_2, 3: choice_3, 4: choice_4, 5: choice_5, 6: choice_6, 7: choice_7, } # Option number 8 is Exit while (choice := menu()) != 8: print() try: callback = menu_callbacks[choice] except KeyError: print("NOT IMPLEMENTED YET") else: callback() print("\n")

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2. People also ask

   What is ISO 4217 currency code?

   • ISO 4217 is the international standard describing three-letter codes known as the currency code. (Example:CAD is the currency code for the Canada Canadian Dollar) This code defines the names of currencies established by the International Organization for Standardization (ISO).

   ExchangeRate.com - Canadian Dollar CAD ISO 4217

   www.exchangerate.com/currency-iso/canadian-dollar-CAD.html

   See all results for this question

   Is ISO 4217 a current version?

   • Therefore this version remains current. ISO 4217:2015 specifies the structure for a three-letter alphabetic code and an equivalent three-digit numeric code for the representation of currencies. For those currencies having minor units, it also shows the decimal relationship between such units and the currency itself.

   ISO 4217:2015 - Codes for the representation of currencies

   www.iso.org/cms/ render/live/en/sites/isoorg/contents/data/standard/06/47/64758.html

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   What does ISO 4217-2015 mean for currencies with minor units?

   • For currencies having minor units, ISO 4217:2015 also shows the relationship between the minor unit and the currency itself (i.e. whether it divides into 100 or 1000). ISO 4217:2015 also describes historical codes in List 3, as well as the codes representing certain funds in List 2.

   ISO - ISO 4217 — Currency codes

   www.iso.org/cms/ render/live/en/sites/isoorg/home/standards/popular-standards/iso-4217--currency-codes.html

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   Why should you use ISO 4217?

   • People around the world rely on almost 300 different currencies to do business with each other, which is why it pays to use ISO 4217. This standard establishes internationally recognized codes for the representation of currencies that enable clarity and reduce errors.

   ISO - ISO 4217 — Currency codes

   www.iso.org/cms/ render/live/en/sites/isoorg/home/standards/popular-standards/iso-4217--currency-codes.html

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3. stackoverflow.com › questions › 638227iso - .NET Currency exponent ISO_4217 - Stack Overflow

   stackoverflow.com › questions › 638227

   • Cached

   Mar 12, 2009 · I can't see any property that represents this at the minute, so if anyone knows definitively if it exists, before I look for it / buy it from ISO. Currency Exponent is the minor units of the currency. http://en.wikipedia.org/wiki/ISO_4217 - e.g. UK is "2"

4. learn.microsoft.com › esg-data-model › currencyCurrency in ESG data model - Microsoft Cloud for Sustainability

   learn.microsoft.com › esg-data-model › currency

   • Cached

   • In this article
   • Attributes

   The definition of Currency is based upon the ISO 4217 standard.

   ISO 4217 is the international standard describing three letter codes (also known as the currency code) to define the names of currencies established by the International Organization for Standardization (ISO).

   See full list on learn.microsoft.com

   The ISO 4217 currency code.

   First included in: Currency (this entity)

   The name of the currency.

   First included in: Currency (this entity)

   The unique identifier of the Country.

   First included in: Currency (this entity)

   See full list on learn.microsoft.com

5. rich-iannone.github.io › DiagrammeR › referenceISO-4217 currency data. — currencies • DiagrammeR

   rich-iannone.github.io › DiagrammeR › reference

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   curr_number. the three-digit code number assigned to each currency under the ISO-4217 standard. exponent. the base 10 exponent of the minor currency unit in relation to the major currency unit (it can be assumed also to be number of decimal places that is commonly considered for the currency) currency_name. the English name of the currency.

6. www.iso.org › cms › renderISO - ISO 4217 — Currency codes

   www.iso.org › cms › render

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   Currency codes. People around the world rely on almost 300 different currencies to do business with each other, which is why it pays to use ISO 4217. This standard establishes internationally recognized codes for the representation of currencies that enable clarity and reduce errors.

7. www.iso.org › cms › renderISO 4217:2015 - Codes for the representation of currencies

   www.iso.org › cms › render

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   ISO 4217:2015 specifies the structure for a three-letter alphabetic code and an equivalent three-digit numeric code for the representation of currencies. For those currencies having minor units, it also shows the decimal relationship between such units and the currency itself.

8. standards.globalspec.com › std › 9948047ISO 4217 - Codes for the representation of currencies ...

   standards.globalspec.com › std › 9948047

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   Oct 15, 2008 · ISO 4217. July 15, 2008. Codes for the representation of currencies and funds. This International Standard specifies the structure for a three-letter alphabetic code and an equivalent three-digit numeric code for the representation of currencies and funds.

9. www.iso.org › standard › 46121ISO 4217:2008 - Codes for the representation of currencies ...

   www.iso.org › standard › 46121

   • Cached

   ISO 4217:2008 specifies the structure for a three-letter alphabetic code and an equivalent three-digit numeric code for the representation of currencies and funds. For those currencies having minor units, it also shows the decimal relationship between such units and the currency itself. ISO 4217:2008 also establishes procedures for a ...