R Under development (unstable) (2024-01-07 r85787 ucrt) -- "Unsuffered Consequences"
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> #******************************************************************************
> # Copyright (c) 2016, College of William & Mary
> # All rights reserved.
> #
> # Redistribution and use in source and binary forms, with or without
> # modification, are permitted provided that the following conditions are met:
> #     * Redistributions of source code must retain the above copyright
> #       notice, this list of conditions and the following disclaimer.
> #     * Redistributions in binary form must reproduce the above copyright
> #       notice, this list of conditions and the following disclaimer in the
> #       documentation and/or other materials provided with the distribution.
> #     * Neither the name of the College of William & Mary nor the
> #       names of its contributors may be used to endorse or promote products
> #       derived from this software without specific prior written permission.
> #
> # THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
> # ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
> # WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
> # DISCLAIMED. IN NO EVENT SHALL THE COLLEGE OF WILLIAM & MARY BE LIABLE FOR ANY
> # DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
> # (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
> # LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
> # ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
> # (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
> # SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
> #
> # PRIMME: https://github.com/primme/primme
> # Contact: Andreas Stathopoulos, a n d r e a s _at_ c s . w m . e d u
> #******************************************************************************
> # File: tests.R
> # 
> # Purpose - Test functions provided by the library
> # 
> #*****************************************************************************
> 
> require(PRIMME)
Loading required package: PRIMME
> 
> # Test for dense and sparse matrices
> 
> As <- list(diag(1:100), diag(as.complex(1:100)));
> if (requireNamespace("Matrix", quietly = TRUE))
+    As[[3]] <- Matrix::Matrix(diag(1:100), sparse=TRUE);
> 
> for (i in 1:length(As)) {
+    A = As[[i]];
+    d <- eigs_sym(A, 3);
+    stopifnot(all.equal(c(100,99,98), d$values, tolerance=1e-7));
+ 
+    d <- svds(A, 3);
+    stopifnot(all.equal(c(100,99,98), d$d, tolerance=1e-7));
+ }
> 
> proc.time()
   user  system elapsed 
   0.89    0.17    1.00