steven lord -凯发k8网页登录
mathworks
i joined the mathworks in the technical support department during the summer of 2001 and transferred into the quality engineering department in march of 2004. i now work qualifying the core matlab numerical functions (plus, minus, lu, fft, ode45, etc.)
professional interests: mathematics, matlab
for assistance with matlab question please post to matlab answers or contact technical support using the contact us link in the upper-right corner of the page instead of contacting me directly.
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15-year anniversary scavenger hunt finisher badge
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matlab answers
answer 10 questions that were unanswered for more than 30 days
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content feed
do you want to actually add seconds to the value (changing the time) or do you want to add seconds to the display (leaving the t...
1 day 前 | 0
let's check that you're using the pca function included in statistics and machine learning toolbox. what does this command show?...
1 day 前 | 0
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if you use the following syntax, you create a uint8 value and then cast that value to int8. since the uint8 value is larger than...
1 day 前 | 2
at the beginnnig looks like weird >> x=0.23: 0
2 days 前 | 1
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images and "regular" plots have different conventions for whether the y axis should be increasing or decreasing as you move towa...
3 days 前 | 0
open the example in matlab using the command that gets copied to the clipboard when you press the "copy command" button. matlab ...
3 days 前 | 1
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matlab is correct. sis(1).trading = 'as is' trading(1) = categorical({'as is'}) sis(1).trading==trading(1) if you used a cap...
4 days 前 | 1
as the error message says, the image data you pass into imagesc must be a matrix (if it's an indexed image or a grayscale intens...
5 days 前 | 0
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row = [1,2,3]; col = [2,4,4]; val = [123,321,456]; m = accumarray([row.', col.'], val.', [4 4])
5 days 前 | 0
see this documentation page for more information about the deployable archive and the wikipedia page for more information about ...
5 days 前 | 0
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are random numbers involved in the process of creating or training your rl model? [my guess is most likely yes.] one way to chec...
6 days 前 | 1
assuming that params doesn't change, consider using the memoize function to create an object you can use in your integrand funct...
6 days 前 | 0
have you considered using the particleswarm function in global optimization toolbox, either as your main solver or to help you d...
6 days 前 | 0
let's make sure you're using the pca and statset functions included with statistics and machine learning toolbox rather than oth...
6 days 前 | 0
if you have an idea in your mind of roughly what you want the plot to look like, open the plots tab of the toolstrip and click t...
6 days 前 | 0
you can convert a number of microseconds into a duration or (if you know the epoch time) into a date and time value. m = 168892...
7 days 前 | 0
using the variable names given on the scatteredinterpolant documentation page, do you mean that your xgrid variable is the x inp...
7 days 前 | 1
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try starting matlab with the -batch option.
7 days 前 | 0
the pointcloud function is part of computer vision toolbox and was introduced in release r2015a. do you have this toolbox instal...
7 days 前 | 0
do you need the histogram to be on a polar axes? if so use the polarhistogram function. x = deg2rad(randi([0 270], 1, 1e6)); p...
8 days 前 | 0
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according to the release notes the puma560 robot model was introduced in release r2023a. you're using release r2022b, the releas...
8 days 前 | 1
you're using this syntax from the retime documentation page: "tt2 = retime(tt1,'regular',method,'timestep',dt) calculates regul...
8 days 前 | 0
your code calls ode45 with an output argument but then doesn't use that output argument later in the code. in addition you're ca...
8 days 前 | 0
you may want to interactively experiment with the various options for importing your data in the import tool. you can specify th...
8 days 前 | 0
can you dynamically create variables with numbered names like a1, a2, a3, etc.? yes. should you do this? the general consensus ...
9 days 前 | 0
if you're requesting support for a new type of hardware, see this page. if you're requesting a different type of support packag...
9 days 前 | 0
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are you sure you intended to take the fft of the input argument s? from the error message that input is a scalar (or a length th...
12 days 前 | 0
this matrix looks similar to the one from one of your previous questions. if that's the case, and you plotted the graph object, ...
13 days 前 | 0
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what was removed was the mupad notebook interface, not the symbolic computation engine. is there a specific reason you are inte...
13 days 前 | 0
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you've likely created your own image.m file that's taking precedence over the image function included in matlab. to check this r...
13 days 前 | 0
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