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# Are Mjaavatten

### Mjaavatten Consulting

243 2015 이후 총 참여 횟수

#### Are Mjaavatten's 배지

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제출됨

H2 and CO2 thermodynamics
Tool for effective thermodynamic calculations. Includes high-accuracy thermodynamic models for H2 and CO2.

10일 전 | 다운로드 수: 9 |

제출됨

test_derivatives
Tool to verify that analytical derivatives are correct

24일 전 | 다운로드 수: 5 |

답변 있음
Fsolve don't work good with trigonometric
Your function has several different zeros. Which one fsolve finds will depend on the starting point. I ran: f = 100; while no...

28일 전 | 0

제출됨

polyfix(x,y,n,xfix,yfix,xder,dydx)
Fit polynomial p to data, but match exactly at one or more points

약 1달 전 | 다운로드 수: 50 |

질문

Help text does not work for user-defined functions
I just installed R2019b and the help function does not work. Example: I created the addme function from the Add Help for Your P...

약 1달 전 | 답변 수: 0 | 0

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질문

Is there a way to avoid repeating time-consuming calculations from odefun in the events function?
The right-hand side in my ODE is quite time-consuming. In the course of calculating dy/dt I calculate a variable u that I also u...

5달 전 | 답변 수: 2 | 0

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제출됨

nistdata(species,T,p)
Create tables of thermophysical properties for gases

5달 전 | 다운로드 수: 9 |

답변 있음
First order ODE parameter fit to dataset
The challenge is how to use your table of temperatures in your updateStates function. At a given time t, you must interpolate y...

5달 전 | 0

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답변 있음
How to calculate a curve for different variables?
Here is one way to do it. I have reduced the number of elements in your Time and V vectors in order to make a nicer surface plo...

6달 전 | 0

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datetime default stetings 12/24
Use HH instead of hh for the hours: >> datetime.setDefaultFormats('default','hh:mm:ss yyyy-MM-dd') >> t = datetime(2019,8,10,...

6달 전 | 4

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답변 있음
How to read a file containing non numerical characters and commas?
The 22 lines of text are easily dealt with using the 'HeaderLines' option. Next you must convert your strings to doubles. Below...

7달 전 | 0

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Cell Array Dynamic Size
If you are happy with storing the data as a matrix for each sheet : filename = 'Q.xlsx'; n_sheets = 2; DP = cell(1,n_sheets);...

7달 전 | 0

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해결됨

Fill the matrix - 1
Input is a column vector and n. n columns will be added to the left of the input column. The first value of the row is the s...

8달 전

답변 있음
I have IgorTime data in which time:units = "seconds since 1904-01-01". I would like to convert this seconds to datevc.
First: Are you sure your T vector is in seconds? If so, your time list covers about 48 milliseconds around 01-Jan-1904 11:41:29....

8달 전 | 1

해결됨

Find the Final State of an Abelian Sandpile
Let us define an <http://nautil.us/issue/23/dominoes/the-amazing-autotuning-sandpile Abelian sand pile> as a matrix that is only...

8달 전

해결됨

Data Regularization
Provided is an m-by-n integer data matrix A whose elements are drawn arbitrarily from a set *S* = [1,2,3,...,S] for any large in...

8달 전

해결됨

Divide elements by sum of elements
In this problem, I ask you to write a function which will divide the elements of each column by the sum of the elements of the s...

8달 전

답변 있음
filename = 'testdata.xlsx'; header = {'name', 'Age'}; A = [12.7;5.02;-98;63.9;0;-.2;56]; B= [12.7;5.02;-98;63.9;0;-.2;56]; c...

8달 전 | 1

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답변 있음
Plot multivariable function,can't get the plot right ?
The main problem with your plot is simply that the large values of f for y > 0.5 dwarf the variations at lower values. Changing...

9달 전 | 1

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답변 있음
Matrix divison or calculating slope
There is a syntax error with your use of parentheses. Also, the slope for the last row is not defined. This should work: nro...

9달 전 | 0

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fitting a curve (3D) to pointcloud data
Assuming that the points are listed in sequence along your curve, you can express x, y, and z as functions of the (approximate) ...

9달 전 | 1

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Word Search Words Overlapping
I was fascinated by your problem, so I wrote my own version. This gave me some insights: I recommend that you first create an ...

11달 전 | 0

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How to find same element in txt file (in a coloumn) and find the amount for averaging the value of another coloumn ?
There may be more elegant ways to read the file, but I often prefer to use textscan to read a text file into a cell array of str...

11달 전 | 1

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답변 있음
Degrees-Minutes-Seconds Separation
It simplifies things if you use a doubke quote (") instead of two single qotes ('') to denote seconds. I enclose the modified ...

11달 전 | 0

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답변 있음
reading a txt file with rows of different length
fid = fopen(filename); lines = textscan(fid,'%s','delimiter','\n'); fclose(fid); lines = lines{1}; % The points data are in ...

12달 전 | 2

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Reading data row by row into matlab.
I often find it useful to read the file into a cell array of strings using textscan. Then I can easily experiment with how to b...

12달 전 | 0

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Reading CSV files in a sequence based on numeric value in file name
d = dir('*.csv'); filenames = {}; index = 0; k = 0; for i = 1:length(d) % Using regexp with lookaround on the file name t...

약 1년 전 | 0

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How to index a random matrix with set conditions?
For a list of the negative values: negM = M(M<0) For the indices of the negative values: [i,j] = find(M<0) To display only t...

약 1년 전 | 1

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답변 있음
How to identify points that are located in a polygon when this polygon passes through the meridian?
It seems that you are using the mapping toolbox, Then you can use ingeoquad: ingeoquad([35,45],[0,10],[30 40], [355 5]) Your ...

약 1년 전 | 2

제출됨

remotest(points,boundary)
Finds the position within or on a boundary that is farthest from any member of a set of points.

약 1년 전 | 다운로드 수: 1 |