# User Portlet

hwoarang Polar
Discussions
When I use Mesh -> {{10,12,14,16,18}}, it works. It's simple grammar. -_-a Thank you very much! Best regards, Jiwan.
Thanks for the reply. I made all units same again. But the sample error messages are there. As long as two arguments are in Sin function, it is hard to be solved, no..? Is there any way to circumvent this....? -_-a Thank you,
Actually, the experimental graph is the transient reflectivity data of the metal induced by the laser pump. The time scale (x-axis of the data) is picosecond. The ideal goal is to compare fitting results between one-free parameter and two-free...
Ah, sorry. I found it. When I use 'Normal' command, Position can read it. In[146]:= \[Chi]square = Normal[SparseArray[1 -> 3, 4]] Position[\[Chi]square, 3] Out[146]= {3, 0, 0, 0} Out[147]= {{1}} Thank you and...
Hello, everyone. I am trying to fit one function (let's say f[t]) to experimental data. I obtained f[t] through interpolation from other experimental data where I already include fitting parameters. That is, f[t] is symbolically interpolated...
Thank you Kay, If it is true, that's too bad. Also I changed all initial numbers to rational forms, then the outcome looks better a little bit (less singular points). But that's not enough for me to get results. It takes toooo long time. Do you...
Thank you, Frank. But, in the integral, H[T] is an unknown function, which should be solved using the following equation. 8 \[Pi] v (2 P2 H[t] + Intg[t, H]) - 10^12 \[Lambda] W[t] == 0 Here, W[q] is a known function (and sorry for typos...
Thank you,Pieter for the reply. I agree that "Table" works well, and I did with this. But the interesting problem is that when one tries to use Plot function directly with Animate, the created movie file does not work. i) GIF file is not moving....
It works. Thank you very much!
Thank you for the reply. But I mean that what if the number of matrix (N) is variable, not fixed. Is there any matrix version of 'Product' command ?