Hi all, I am running GNU Radio 3.7.13.4 and working in GNU Radio Companion on Ubuntu 18.04
I have a very simple flowgraph where I have a source of type complex (I've tried both a signal source and a constant source) which I connect to a transcendental block (of type complex) and then output to a sink of type complex (I don't think anything after the transcendental block matters). I have tried the transcendental block with functions "sin", "cos" and "exp". When I execute the flowgraph, I get the error: ValueError: itemsize mismatch: sig_source_c0:0 using 8, transcendental0:0 using 16 The transcendental block is meant to take any cmath functions so I thought perhaps there were different function names for the complex and float cases? Something like "ccos" or csin" but I haven't seen any on the list of available functions <http://www.cplusplus.com/reference/cmath/>. I have seen similar questions <https://lists.gnu.org/archive/html/discuss-gnuradio/2014-03/msg00200.html> where people are creating custom blocks and OOT modules and seeing this problem. They have often used the wrong datatype (numpy complex 32 instead of 64). I am not using any custom blocks. This problem is with stock/shipped GR blocks. Any help is appreciated! Nick
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