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Why does a Command line from the course instructor give the wrong answer?

Roberto Catanuto

Roberto Catanuto, Mathematics Teacher

Posted 6 months ago

From Introduction to Wolfram Language - Manipulate I copied this line from Exercise 9.4 Manipulate[Graphics[Style[Disk[],Hue[h]]],{h,0,1}] straight from the course instructor video. Yet, it is graded as incorrect. Can you help me what I am doing wrong ? Thanks in advance

POSTED BY: Roberto Catanuto

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Cassidy Hinkle

Cassidy Hinkle, Wolfram Research

Posted 6 months ago

Hi Roberto, Thank you for pointing out the error, we will be updating the course framework in the next few days. I will post here when the updated exercise has been deployed. Best Wishes, Cassidy Hinkle Wolfram U Team

POSTED BY: Cassidy Hinkle

Michael Rogers

Michael Rogers, Emory University

Posted 6 months ago

I, personally, think you are doing it right. These variations are also graded "incorrect": Manipulate[Graphics[Style[Disk[],Hue[h]]],{{h,0.},0,1}] (* == expected output ) Manipulate[Graphics[{Hue[h], Disk[]},{h,0,1}] ( my personal preference *) Manipulate[Graphics[{Hue[h], Disk[]},{{h,0.},0,1}] All achieved the stated task in Ex. 9.4, as I understood it.

I, personally, think you are doing it right. These variations are also graded "incorrect":

Manipulate[Graphics[Style[Disk[],Hue[h]]],{{h,0.},0,1}] (* == expected output *)
Manipulate[Graphics[{Hue[h], Disk[]},{h,0,1}] (* my personal preference *)
Manipulate[Graphics[{Hue[h], Disk[]},{{h,0.},0,1}]

All achieved the stated task in Ex. 9.4, as I understood it.

POSTED BY: Michael Rogers