http://www.k-wave.org/forum/topic/error-in-kspacefirstorder2d-line-920 Support for the k-Wave MATLAB toolbox en-US Tue, 12 May 2026 22:00:27 +0000 http://bbpress.org/?v=1.0.2 q http://www.k-wave.org/forum/search.php http://www.k-wave.org/forum/topic/error-in-kspacefirstorder2d-line-920#post-9045 Mon, 04 Mar 2024 07:30:29 +0000 donghunk 9045@http://www.k-wave.org/forum/ <p>I also encountered this error, and my solution was to move the K-wave toolbox higher in the add-on search order. In 2023b, go to the "Home" tab ==&gt; click on "Set Path" (under the "Preferences" tab) ==&gt; select all K-wave-related paths ==&gt; click the "Move to Top" button ==&gt; save ==&gt; close.</p> <p>Given that I did not want to uninstall the curve fitting toolbox, this seemed like a decent compromise, but I'm not sure how it will affect my use of the curve fitting toolbox. The first example in the cf toolbox's example code for the <code>smooth</code> function seems to work for snow, but given that I have not used that function directly before, perhaps it will cause issues later on. </p> http://www.k-wave.org/forum/topic/error-in-kspacefirstorder2d-line-920#post-9015 Wed, 24 Jan 2024 11:28:59 +0000 Bradley Treeby 9015@http://www.k-wave.org/forum/ <p>Are you running an initial value problem with smoothing turned on, and have the curve fitting toolbox? There can sometimes be a clash between the <code>smooth</code> function in k-Wave and the <code>smooth</code> function in this toolbox. If that's the case, try removing the curve fitting toolbox from the path when running k-Wave. </p> http://www.k-wave.org/forum/topic/error-in-kspacefirstorder2d-line-920#post-8998 Tue, 02 Jan 2024 22:45:32 +0000 afshinsadri 8998@http://www.k-wave.org/forum/ <p>Hello Guys</p> <p>I have this below error. Does anyone know how to fix this error?</p> <p>Arrays have incompatible sizes for this operation.</p> <p>Error in kspaceFirstOrder2D (line 920)<br /> ux_sgx = dt .* rho0_sgx_inv .* real(ifft2( bsxfun(@times, ddx_k_shift_pos, kappa .* fft2(p)) )) / 2;</p> <p>Error in Prac01 (line 41)<br /> recorded_data = kspaceFirstOrder2D(kgrid,medium,source,sensor); </p>