how to solve this problem? with message subscript indices must either be real positive integers?

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rico aditia prahmana
评论： Star Strider 2015-3-6
Hello, I get this error, Subscript indices must either be real positive integers or logicals.
The line with this error is,
An=110;
Am=100;
DUM(100,An/(Am+1)+1)={''};

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采纳的回答

Star Strider
Star Strider 2015-3-6
The index you’re calculating evaluates to 2.0891... so as a float, it definitely does not meet the integer-or-logical criterion.
I’m not certain what you’re doing with your indices, but one option would be to use the fix function to produce an integer index:
DUM(100,fix(An/(Am+1))+1)={''};
Other options, if fix does not produce the result you want, are of course are ceil, floor, and round.

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