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Groups > comp.soft-sys.math.maple > #1328

printf fussy about format string

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Why is Maple happy with cat but not || in a format string?

    |\^/|     Maple 2017 (X86 64 LINUX)
._|\|   |/|_. Copyright (c) Maplesoft, a division of Waterloo Maple Inc. 2017
 \  MAPLE  /  All rights reserved. Maple is a trademark of
 <____ ____>  Waterloo Maple Inc.
      |       Type ? for help.
> with(StringTools):
> z1:=1+I;
                                   z1 := 1 + I

> z2:=1-I;
                                   z2 := 1 - I

> printf(cat(Repeat("%+12.5e*e^(I*%+12.5e) ",2),"\n"),
>        abs(z1),argument(z1),abs(z2),argument(z2));
+1.41421e+00*e^(I*+7.85398e-01) +1.41421e+00*e^(I*-7.85398e-01) 
> printf(Repeat("%+12.5e*e^(I*%+12.5e) ",2)||"\n",
>        abs(z1),argument(z1),abs(z2),argument(z2));
Error, (in fprintf) format string expected
> z2:=1-I;
 

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printf  fussy about format string jfh <john.harper@vuw.ac.nz> - 2018-10-30 14:50 -0700
  Re: printf  fussy about format string acer <maple@rogers.com> - 2018-10-31 06:08 -0700

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