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Geometry Jobs

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Fixed-Price - Expert ($$$) - Est. Budget: $2,500 - Posted
Ok, this may sound crazy however it is what i call a game changer, I would like to give my lawn care service customers a bar-code in their welcome package when they sign up with my company for services. They would place the barcode on the mail-box post and we would scan it on arrival and departure. on departure scan it would achieve the gps coordinates and also charge the customer. all of this being live online for the customer to see and enjoy. ANY TAKERS!!!! I also have programmed a easy estimator tool online for pricing please view and you will see the start of my plan! http://easyestimator123.azurewebsites.net/ "I myself know how to program , but not to the level im asking, this easy estimator is the best i can do as far as programming goes"
Skills: Geometry Android App Development API Development C++
Hourly - Expert ($$$) - Est. Time: Less than 1 week, 10-30 hrs/week - Posted
I need to detect the full rotation of an accelerometer (a ADXL335 mounted on a GY-61). This device attaches to the ankle and is meant to count the number of cartwheels my daughter does. The issue is that her foot does not move along a single axis of rotation, it also rotates 180 degrees from start to finish which means that my naive single-axis rotation detection fails. This contract is to provide an algorithm or actual Arduino code to detect a full rotation. I've looked at quaternions and euler angles but they are a bit beyond my mathematical abilities. For someone well versed in this level of mathematics this should be a fun little project. Here is a video of the rotation. My daughter has a white band on her foot so you can see the rotation. https://vimeo.com/150970438 Pass: cartwheel99 Below is the code of what I am currently detecting and deriving from the accelerometer. Thanks! This is the finishing touch on this little project. ---- // Define GY-61 Constants #define ADC_ref 3.3 #define zero_x 1.569 #define zero_y 1.569 #define zero_z 1.569 #define sensitivity_x 0.3 #define sensitivity_y 0.3 #define sensitivity_z 0.3 // Raw reading unsigned int value_x; unsigned int value_y; unsigned int value_z; // Check orientation to ground (voltage off reference) float xv; float yv; float zv; // Calculate currently angle given the orientation float angle_x; float angle_y; float angle_z; void setup(){​ }​ void loop() {​ value_x = analogRead(2); value_y = analogRead(1); value_z = analogRead(0); xv = (value_x / 1024.0 * ADC_ref - zero_x) / sensitivity_x; yv = (value_y / 1024.0 * ADC_ref - zero_y) / sensitivity_y; zv = (value_z / 1024.0 * ADC_ref - zero_z) / sensitivity_z; angle_x = atan2(-yv, -zv) * 57.2957795 + 180; angle_y = atan2(-xv, -zv) * 57.2957795 + 180; angle_z = atan2(-yv, -xv) * 57.2957795 + 180; }​
Skills: Geometry Mathematics
Hourly - Entry Level ($) - Est. Time: More than 6 months, Less than 10 hrs/week - Posted
We need math tutors for 24 hour online help. You must be very good at solving mathematics. Requirements: 1. Must have android 4.3 device for answering questions. 2. Good camera which captures clear picture. 3. Must be flexible on working hour.
  • Number of freelancers needed: 15
Skills: Geometry Calculus Mathematics Teaching Mathematics
Hourly - Entry Level ($) - Est. Time: More than 6 months, Less than 10 hrs/week - Posted
We need math tutors for 24 hour online solution providing company. You must be very good at solving mathematics. Questions will be from primary level to college level. Requirements: 1. Must have android 4.3 device for answering questions. 2. Good camera which captures clear picture. 3. Must be flexible on working hour. Candidates must attend in an online exam. Working hours will be distributed according to the good scorer in the exam. So, Make a good score and take your suitable hours.
  • Number of freelancers needed: 15
Skills: Geometry Calculus Mathematics Teaching Mathematics
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