Math.Eigen not working in Dyalog APL 18.2 and 19.0

[KamakaniKing]

Is anyone else having issues with the Math.Eigen function from the Tools Library? The example code below works in version 18.0, but gives the following error in 18.2 and 19.0:

⍎SYNTAX ERROR: Invalid Keyword: ":"
Call[0] ***ERROR 102 : ⎕NA'lapack64|dgeev_ <C1 <C1 <I4 =F8[] <I4 >F8[] >F8[] >I4 <I4 >F8[] <I4 >F8[] <I4 >I4'
                    ∧

Example code to test this:

⎕FIX'file://C:/Program Files/Dyalog/Dyalog APL-64 19.0 Unicode/Math.dyalog' ⍝ load Math Library
v1←10|3×(¯1+⍳10)
u1←v1⌽10 10⍴1,9⍴0
Math.Eigen u1

[Vince|Dyalog]

Hi KamakaniKing,

I think that you do not have the Math dlls in your 19.0 directory.

Please copy fftw64.dll and lapack64.dll from your 18.0 install directory to your 19.0 directory.

I think it will work then.

To test, I removed these dlls from all directories on my system path. I could then reproduce your problem. I fixed it by bringing back the DLLs.

FYI, for anyone else reading this thread, the DLLs can be found in:
https://github.com/Dyalog/Math/releases

Regards,

Vince

[KamakaniKing]

Vince - Thanks! That was the problem. All is working fine now.