Tropical algebra overloading: Difference between revisions
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=={{header|R}}==
R's overloaded operators, denoted by %_%, have different precedence order than + and *, so parentheses are needed for the distributive example.
<lang r>"%+%"<- function(x, y) max(x, y)
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cat("5 %*% (8 %+% 7)) ==", 5 %*% (8 %+% 7), "\n")
cat("5 %*% 8 %+% 5 %*% 7 ==", (5 %*% 8) %+% (5 %*% 7), "\n")
cat("5 %*% 8 %+% 5 %*% 7 == 5 %*% (8 %+% 7))", 5 %*% (8 %+% 7) == (5 %*% 8) %+% (5 %*% 7), "\n")
</lang>{{out}}
<pre>
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5 %*% (8 %+% 7)) == 13
5 %*% 8 %+% 5 %*% 7 == 13
5 %*% 8 %+% 5 %*% 7 == 5 %*% (8 %+% 7)) TRUE
</pre>
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