[R] R:Exponent

David Winsemius dwinsemius at comcast.net
Thu Dec 31 22:16:12 CET 2015

> On Dec 31, 2015, at 1:12 PM, David Winsemius <dwinsemius at comcast.net> wrote:
>> On Dec 31, 2015, at 11:16 AM, Abram Wooten via R-help <r-help at r-project.org> wrote:
>> Hello, 
>> I am new to R and I am having trouble adding an exponent to my problem. For instance,
>>> mat5 <-matrix(c(0.5,0.5,0.25,0.75),2,byrow=T)
>>> mat6 <-matrix(c(0.5,0.5,0.25,0.75),2,byrow=T)
>>> mat5%^%2
>> Error: could not find function "%^%"
> The package expm provides matrix exponentials. I think that package Matrix has the same capability, although its help page says that expm::expm is likely to be faster.

And I think I may have conflated matrix power function with matrix exponential. Nonetheless, one can also get a `matpow` function from the same package:


# returns page for 
matpow {expm}

> -- 
> David
>> I unsure on weather I should square mat5 or use the two mats and square them both. I really need some help. 
>> Thanks,
>> Abram 
>> Sent from Mail for Windows 10

David Winsemius
Alameda, CA, USA

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