Beantwortet
My ThingSpeak doesn't receive particular data regularly
Now I see the issue. You should send one update to ThingSpeak instead of building them seperately for each field. You care act...

fast 4 Jahre vor | 0

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Find the sides of an isosceles triangle when given its area and height from its base to apex
Find the sides of an isosceles triangle when given its area and the height from its base to apex. For example, with A=12 and ...

fast 4 Jahre vor

Beantwortet
How to partially delete data in ThingSpeak channel?
A ThingSpeak channel is supposed to act a bit like a lab notebook. As such, specific deletion has been passed in favor of other...

fast 4 Jahre vor | 0

Beantwortet
My ThingSpeak doesn't receive particular data regularly
Do you have a paid thingSpeak license? The update rate for the free account is only once per 15 seconds. If you have a free ac...

fast 4 Jahre vor | 0

Gelöst


Height of a right-angled triangle
Given numbers a, b and c, find the height of the right angled triangle with sides a and b and hypotenuse c, for the base c. If a...

fast 4 Jahre vor

Gelöst


Can we make a triangle?
Given three positive number, check whether a triangle can be made with these sides length or not. remember that in a triangle su...

fast 4 Jahre vor

Gelöst


Calculate the area of a triangle between three points
Calculate the area of a triangle between three points: P1(X1,Y1) P2(X2,Y2) P3(X3,Y3) these three points are the vert...

fast 4 Jahre vor

Gelöst


Pi Estimate 1
Estimate Pi as described in the following link: <http://www.people.virginia.edu/~teh1m/cody/Pi_estimation1.pdf>

fast 4 Jahre vor

Gelöst


radius of a spherical planet
You just measured its surface area, that is the input.

fast 4 Jahre vor

Gelöst


Calculate area of sector
A=function(r,seta) r is radius of sector, seta is angle of sector, and A is its area. Area of sector A is defined as 0.5*(r^2...

fast 4 Jahre vor

Gelöst


Rounding off numbers to n decimals
Inspired by a mistake in one of the problems I created, I created this problem where you have to round off a floating point numb...

fast 4 Jahre vor

Gelöst


intersection of matrices
Given two matrices filled with ones and zeros, determine if they share a common row, column entry. These matrices are of identic...

fast 4 Jahre vor

Gelöst


Check if number exists in vector
Return 1 if number _a_ exists in vector _b_ otherwise return 0. a = 3; b = [1,2,4]; Returns 0. a = 3; b = [1,...

fast 4 Jahre vor

Gelöst


Return unique values without sorting
If the input vector A is [42 1 1], the output value B must be the unique values [42 1] The values of B are in the same order a...

fast 4 Jahre vor

Gelöst


Generate N equally spaced intervals between -L and L
Given N and L, return a list of numbers (in ascending order) that divides the interval [-L L] into N equal-length segments. F...

fast 4 Jahre vor

Beantwortet
I want to display negative temperature on channel view
Here are a few ways to get negative numbers into ThingSpeak or to plot them in MATLAB. https://api.thingspeak.com/update?api_ke...

fast 4 Jahre vor | 0

Gelöst


Getting the indices from a matrix
Inspired by Problem 645. Getting the indices from a matrix. Given a matrix A (or a vector), return the indices (always in row...

fast 4 Jahre vor

Beantwortet
Is thingspeak free version account expire after one year
See the licensing FAQ. Free ThingSpeak licenses will renew yearly in the month you created the license assuming you meet the log...

etwa 4 Jahre vor | 0

Gelöst


Matlab Basics - Rounding III
Write a script to round a large number to the nearest 10,000 e.g. x = 12,358,466,243 --> y = 12,358,470,000

etwa 4 Jahre vor

Gelöst


Matlab Basics - Rounding II
Write a script to round a variable x to 3 decimal places: e.g. x = 2.3456 --> y = 2.346

etwa 4 Jahre vor

Gelöst


Check that number is whole number
Check that number is whole number Say x=15, then answer is 1. x=15.2 , then answer is 0. http://en.wikipedia.org/wiki/Whole_numb...

etwa 4 Jahre vor

Discussion


Community contests to help you improve your MATLAB coding skills
Hopefully you are aware that MATLAB is built into ThingSpeak. Right now, MathWorks is hosting two contentsthat can help you lea...

etwa 4 Jahre vor | 0

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MATLAB Basic: rounding IV
Do rounding towards plus infinity. Example: -8.8, answer -8 +8.1 answer 9 +8.50 answer 9

etwa 4 Jahre vor

Gelöst


MATLAB Basic: rounding III
Do rounding towards minus infinity. Example: -8.8, answer -9 +8.1 answer 8 +8.50 answer 8

etwa 4 Jahre vor

Gelöst


MATLAB Basic: rounding II
Do rounding nearest integer. Example: -8.8, answer -9 +8.1 answer 8 +8.50 answer 9

etwa 4 Jahre vor

Gelöst


MATLAB Basic: rounding
Do rounding near to zero Example: -8.8, answer -8 +8.1 answer 8

etwa 4 Jahre vor

Beantwortet
App designer table handling
Thanks for showing the result Karol. Im taking your solution and adding it to the answers to help others find it. Solved by ...

etwa 4 Jahre vor | 0

Beantwortet
Can't send data to Thingspeak from Microbit DFRobot kit
Are you able to update the channel using the GET command in your browser address bar? Click on your channel view and use the A...

etwa 4 Jahre vor | 0

Beantwortet
Unable to write data by bulk update *csv method [ESP8266, Arduino framework]
I havent tested this recently, but I found it in an old folder and I expect that it works. I had to escape some values. Please ...

etwa 4 Jahre vor | 0

Beantwortet
Unable to write data by bulk update *csv method [ESP8266, Arduino framework]
The arduino client should take care of url encoding your data. I would use the raw text in the value of char csv_feed Perhap...

etwa 4 Jahre vor | 0

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