ram6ler / function-tree Goto Github PK

The output of "1".interpret() should be 1 but it come as 1.0
Similary for "1+1".interpret(), the output is 2.0 but it should be 2

I started with string normal string calculation.

Method i am using right now :

0-6=-6 and then i tries to add value in it. It will be added in negative number instead of substracting it shows -6+3=-9 as output.

Console output :

Code i've tried with it.

calculatedAmount = (startAmount.interpret()).toString();
print(startAmount);
startAmount = calculatedAmount;
print(startAmount);

Hi,
Thank you for creating this great plugin.
I am planned to add factorial function.
Example 5! -> 1 x 2 x 3 x 4 x 5 = 120
Do you have idea how to add this new function (using ! symbol) to compute factorial.
Thank you

i wrote a tool on dart and now we are cutting down all the tools from frontend and putting them on backaend database.
now we are fetching these tools from api [API returns responses in string format only ].
the response came from the API is
'''BaseTool.fromFunction(
name: 'searchPatient',
description: 'Tool for searching patients based on a query.',
inputJsonSchema: const {
'type': 'object',
'properties': {
'query': {
'type': 'string',
'description':
'Patient search based on query, like name, phone number, email address, or city.',
},
},
'required': ['query'],
},
func: (final Map<String, dynamic> toolInput) async {
final String query = toolInput['query'];
try {
dynamic response = await userRepo.getPatientsBasedOnQuery(query);

      // create a list of patients
      final List<dynamic> patients = response['results'];
      final List<ViewPatientModel> patientArray = [];
      if (patients.isNotEmpty) {
        for (final patient in patients) {
          var innerModel = ViewPatientModel(
              phoneNumber: patient['phoneNumber'],
              uuid: patient['uuid'],
              display: patient['display'],
              age: patient['age'],
              gender: patient['gender'],
              id: patient['id']);

          patientArray.add(innerModel);
        }
      }
      AssistantController controller = Get.find();
      if (patientArray.isNotEmpty) {
        RaxaLoggedInAssistantModel finalModel = RaxaLoggedInAssistantModel(
            uuid: "patientList",
            value: "Here is your patients list based on your query",
            identifier: "patientList",
            viewPatientModel: patientArray);
        controller.resultAddedFromTheTool = true;
        controller.raxaAssistantLoggedInMessagesList.value.add(finalModel);

        controller.raxaAssistantLoggedInMessagesList.notifyListeners();

        controller.loadingAssistantMessage.value = false;
      } else {
        controller.resultAddedFromTheTool = false;
      }

      return jsonEncode(response);
    } catch (e) {
      assistantController.loadingAssistantMessage.value = false;
      return e.toString();
    }
  },
)'''
;

can i execute that string in a dart after assigning the string to the variable and can it be converted in executable dart code ?

This is a request to add support for null safety to package:function_tree.
We depend on your awesome package, so would be great to have null safety enabled.

The Dart/Flutter team already encourages publishing the migrated packages: See this blog post.

See the migration guide for details about enabling null safety.

I think that '' log '' does not work well, because when I use it it does the same as "ln" that is;
ln (6) = 1.791759469228055
log (6) = 1.791759469228055

This should not be the case, if ln is logarithm to base e that is fine, but log I understand that it is logarithm to base 10 and therefore it should be;
ln (6) = 1.791759469228055
log (6) = 0.77815125038364363250876679797961

Therefore "ln" works perfectly but "log" does not.

Maybe I do not use it well but I am using it as I put in the example and that way it works well for me in all calculators.

If I am not using it well I would like you to explain how to do it.

Functions such as ceil and floor are not working and log is returning the natural log instead of base 10.
Thanks in advance.

When I put
8*-5
or
9/-5

it show following error:
Unhandled exception:
#0 _StringBase.[] (dart:core-patch/string_patch.dart:260:41)
#1 _parseString (package:function_tree/src/interpreter.dart:90:17)
#2 _parseString._binaryOperationCheck (package:function_tree/src/interpreter.dart:166:9)
#3 _parseString (package:function_tree/src/interpreter.dart:198:27)
#4 _parseString._binaryOperationCheck (package:function_tree/src/interpreter.dart:165:22)
#5 _parseString (package:function_tree/src/interpreter.dart:180:23)
#6 new SingleVariableFunction (package:function_tree/src/trees.dart:57:12)
#7 StringMethods.toSingleVariableFunction (package:function_tree/src/extensions.dart:22:7)
#8 StringMethods.interpret (package:function_tree/src/extensions.dart:29:22)
#9 main (file:///C:/Users/huzai/OneDrive/Documents/GitHub/Flutter-Sec-A/Flutter/Assignments/second/test.dart:5:13)
#10 _delayEntrypointInvocation. (dart:isolate-patch/isolate_patch.dart:295:32)
#11 _RawReceivePortImpl._handleMessage (dart:isolate-patch/isolate_patch.dart:192:12)

but it work fine at:
-8*5
or
-9/5

I think it is a operator adjacent problem

Hey @ram6ler,
first of all thank you for this great package!

I want to write a simple calculator where the input of the user gets parsed into latex in real time.
If the user didn't finish the equation yet, I would still be able to show the (until now) typed equation.
Is it possible to bypass the checking of valid expressions before parsing? (Only for parsing, not for interpreting :P)

Thank you so much in advance, and as I said: awesome package!
Keep up the good work!

Best Regards,
Louis :)

Hi @ram6ler - thanks for creating this awesome package ✨ The functionality is amazing.

It integrates quite well with math_expressions (the string reprensentations in that package) and it supports almost all of the same functions. However, there is one missing feature we noticed.

Feature request: log(n, c) & nrt(n, c)

In math_expressions, you can define a logarithm to an arbitrary base n using log(n, c). The same goes for sqrt.

It would be great if this package would also support those and it seems relatively straight-forward:

• log supports either log(c) or log(n, c) (not a breaking change). This would look like this when converted to TeX → \log{c} & \log_n{c}
• sqrt supports either sqrt(c) or nrt(n, c) (also not a breaking change). This would look like this when converted to TeX → \sqrt{c} & \sqrt[n]{c}.

For the functionMap part, it should also be straight-forward:

• log(n, c) would be (n, c) => log(c) / log(n)
• nrt(n, c) would be (n, c) => pow(c, 1 / n)

When I put:
1 * 10 ^ 50
The result is: -5,376,172,055,173,529,600
When it really should be: 1e + 50
Or even if I put:
2000000000000000000*5
the result is: -8.446.744.073.709.551.616
When it should be: 10.000.000.000.000.000.000

I know that for most people it is not common to do an operation of such a large number, but it gives the feeling that when large operations are made it gives errors, it would be good if you fix it please, since I am making a calculator and I do not want him to give me errors of this type.
Also I was testing the math_expresions package and it does it well but I prefer this one as it has more options like sinh, etc ...
If you could update that would be awesome.

log and ln give the same result.like log(45) and ln(45)