Vicinity | parody project

Program.cs

This is more of a math problem than a programming problem, but it has now come up for me twice in two different programming projects.

I would like to create a function, w_sweep(t, f0, t0, f1, t1), that samples at time t a sine wave that sweeps through frequencies from f0 when t == t0 to f1 when t == t1. (You can assume frequencies are in Hz and times are in seconds. I don't care what happens when t is outside the range t0..t1.)

I started by writing a simpler function that uses a constant frequency:

I am trying to add annotations to my MapKit, however the array I append to is returning nil. I used this method before to populate CollectionView in previous ViewControllers and the array had values, now if I print the array it returns 0 values, I am sure that there should be data because It is printed in the console, however not being added to the array. Thoughts please?

My Manager Class:

Good afternoon. I am working on my final year project, in my project I am using Google Maps API to show results in CollectionView.

If I test print the array, result is successful and I get the data displayed. Sometimes the app works perfectly, If I run it, it goes through and working, 75% of the times I get Fatal error: Index out of range: file Swift/ContiguousArrayBuffer.swift, line 444.

Any help is so much appreciated and thank you so much.

I am currently developing an Android NFC application. This application contains a NavigationDrawer in which I can access 3 different fragments which each correspond to 3 different NFC features.

My goal is that when the onNewIntent method is called, so when the NFC tag is detected, I update the UI with the information in the tag.

At first, the update of the UI is done synchronously but the idea is to have something asynchronous by using coroutines in the future.

The problem is simply that the UI does not update when the onNewIntent function is called, can you help me?

MainActivity:

Using Google places and RatingBarIndicator. Everything is working as it should however, in addition to the rating stars I would love to have the rating number to the right of the stars, however, all documentation I have seen on RatingBarIndicator doesn't show how to get the number from the API.

places.dart

I have a JSON file which contains reviews that I want to access. it looks like this:

I'm trying to solve a simple system of non-linear equations described in this post.

The system is two equations with two unknowns p and q and a free parameter lambda:

When lambda = 1 the system looks like this:

There is a unique solution and it's in the vicinity of p = 0.3, q = 0.1.

I'm trying to solve it with nleqslv. My objective function is:

Relatively new to React and trying to sort the mapped prop nearbyRestaurants alphabetically by place.name. Is there a way I can chain the sort method to the end of the map method to alphabetize the list?