parameters

问题 In my existing codebase, I have a non-template class and its constructor has the following declaration signature... struct SomeStruct { double a_; double b_; SomeStruct(double a, double b) : a_{a}, b_{b} {} } class SomeClass { private: SomeStruct fields_; size_t n_; std::function<double(double)> func_; public: SomeClass(SomeStruct fields, size_t n, std::function<double(double)> func) : fields_{fields}, n_{n}, func_{func} {} }; I was using it like this: constexpr double funcA(double x) {

问题 It's difficult to tell what is being asked here. This question is ambiguous, vague, incomplete, overly broad, or rhetorical and cannot be reasonably answered in its current form. For help clarifying this question so that it can be reopened, visit the help center. Closed 8 years ago . For most of you this is probably common sense but I am finding it very, very hard to get a handle on this. If you create a function such as def one(): x=1 y=2 z=3 h=33 j=454 l=353 m=898 then lets say I have

问题 I have some fields which post String and int , the String fields are working properly and I am getting these values at the db, the at the int type fields I'm getting this error message. The argument type '(int) → dynamic' can't be assigned to the parameter type '(String) → void'. I'm using bloc to post to a firebase db. here is how it looks. Widget build(BuildContext context) { final trackerBloc = Provider.of<TrackerBloc>(context); String docId = DateTime.now().millisecondsSinceEpoch.toString

问题 I am currently solving a system of nonlinear ODE's. It is a set of kinematic motion equations, where I need to calculate the position angles with given anguar velocities I found out, how to add a function dependent on time using the list, but the question is, how to add a parameter which is also time dependent, but given as a vector. Simplified is it written in the following code. c(t) is a time function. function dx = f(t, x, c) dx(1) = x(1)*sin(x(2)) dx(2) = c*x(2)*cos(x(1)) dx(3) = t*cos(x

问题 My code has two api calls in question. The first api call is a GET request that uses a URL query, which works perfectly. The second api call is a GET request that uses a URL parameter. For some reason the URL query works just fine but the URL parameter method does not work. const express = require('express') const path = require('path') const app = express() // Server side api call - testing out url query at https://website.com/api?id=12334 app.get('/api/', (req, res) => { var sessionID = req

问题 Is there a way to create a function which can be called with a variable number of parameters (comma separated, so positional). For example, calling a such function with function1(param1,param2) and possibly calling it with function1(,param2) or function1(param1,) ? I've created a function with default parameters but I've errors when calling it : select * from iDxi('3 days',) order by "Date" asc ERROR: syntax error at or near ")" LINE 1: select * from iDxi('3 days',) order by "Date" asc My

问题 My Jenkins pipeline job is not parameterized, but while calling the job from a pipeline script I can provide parameters that are getting used inside my current job. I would like to pass those parameters from outside using a curl command. I tried the following options but am yet to be successful. curl -i -X POST 'https://<USERNAME>:<API_TOKEN>@JENKINS_URL/job/DS_JOB1/build?token=remotejob' --data-urlencode json='{"parameter": [{"PLATFORM":"Value1", "PROJECT": "Project_Type"}]}' This doesn't

问题 To plot a function with its parameters being updated dynamically via sliders is easy in R using basic plot and 'manipulate' package. Here is an example of a sine wave with its amplitude and frequency being controlled by parameters A and k, respectively. library(manipulate) manipulate(plot(x, A*sin(k*x)), A = slider(1,3), k = slider(1,10)) However, the basic plot is not as pretty a plotly one. Is there a simple way to do it in plotly? Plotly provides examples of sliders on its site, but the

问题 I have to migrate a part of a monolith to be able to run the migrated part independently, but i'm new in azure functions. Multiple HttpTriggers contain an a unsupported parameter type. ( IMultiplierService ) public static async Task<IActionResult> GetMultiplier( [HttpTrigger(AuthorizationLevel.Anonymous, "get", Route = "multipliers/{id:guid}")] HttpRequest req, string id, IMultiplierService multiplierService){ ... } I read online and understand that the string id is a reference to the {id

问题 I have an object called "operator" in C# with a method that takes two number inputs from a user and adds them together. However, I want to make the second parameter (2nd input) optional so that the default is "4" if the user doesn't enter a second number. I know something's wrong because it just ends the program rather than using the default if the user enters just one number and hits enter when prompted for second input. This solution is probably very obvious but it's eluding me. I'd