AffineMat3 (sin,cos)

[nerobotParticipant]

There is this func in AffineMat3 class

Monkey

Function Rotation:AffineMat3( rz:Double ) Return New AffineMat3( Cos( rz ),-Sin( rz ),Sin( rz ),Cos( rz ),0,0 ) End

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Function Rotation:AffineMat3( rz:Double ) Return New AffineMat3( Cos( rz ),-Sin( rz ),Sin( rz ),Cos( rz ),0,0 ) End

Question: Will we get profit if we will calculate sin/cos only one time?

Monkey

Function Rotation:AffineMat3( rz:Double ) Local c:=Cos( rz ) Local s:=Sin( rz ) Return New AffineMat3( c,-s,s,c,0,0 ) End

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Function Rotation:AffineMat3( rz:Double ) Local c:=Cos( rz ) Local s:=Sin( rz ) Return New AffineMat3( c,-s,s,c,0,0 ) End

[codifiesParticipant]

its what I do, but I haven’t tested it, it might actually be no benefit at all, but benchmarks can often be misleading….

[Author]

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