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  \code{symmetric} argument is missing.
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  \code{symmetric} argument is missing.
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}
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}
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\examples{
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\examples{
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isSymmetric(D3 <- diag(3)) # -> TRUE
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isSymmetric(D3 <- diag(3)) # -> TRUE
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D3[2,1] <- 1e-100
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D3[2, 1] <- 1e-100
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D3
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D3
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isSymmetric(D3) # TRUE
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isSymmetric(D3) # TRUE
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isSymmetric(D3, tol = 0) # FALSE for zero-tolerance
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isSymmetric(D3, tol = 0) # FALSE for zero-tolerance
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}
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}
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\keyword{array}
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\keyword{array}