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Maths notation

Community Veteran
Posts: 3,826
Thanks: 44
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Registered: 24-09-2008

Maths notation

Just reviewing a document, can somebody please remind me, is the maths notation sin4(x) the same as sin (x) 4
3 REPLIES
wykehamhouse
Grafter
Posts: 260
Registered: 01-02-2013

Re: Maths notation

No it is not. The first one is saying sin to the power of 4 * x, whereas the second one is saying sin * x to the power of 4.
Superuser
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Registered: 10-04-2007

Re: Maths notation

Quote from: journeys
Just reviewing a document, can somebody please remind me, is the maths notation sin4(x) the same as sin (x) 4

I believe the initial statement is incorrect by merely misplacing a bracket?  It should read  sin4(x) the same as (sin x )4
Maurice
Superuser
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Registered: 06-04-2007

Re: Maths notation

Reactivating the little grey cells that happily dealt with this type of notation many years ago…
I think the two expressions are probably meant to be equivalent. However sin4(x) is the preferred way of writing this. Otherwise things could get a bit confused if a more complex expression such as sin4(x2+1) is written as sin(x2+1)4 - meaning (sin(x2+1))4. In the latter expression the nested parentheses are difficult for the eye to follow.
David