You cannot skip 3rd parameter when 4th is present
nCRC=SYS(2007,"129000006137",0,1)
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>i have not used crc32 before and am trying to run the follow code
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>nCRC=SYS(2017,"129000006137",,1)
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>
>I get a function value , argument,type count invalid error message
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--sb--