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Question: Location for extrema value

Question:Location for extrema value

mskalsi 290 Maple 18
extrema
May 05 2016
0

Please check why Maple is not returning location of Minima in following case:

 

> 

-0.6159648936e-1*sin(.9960622471*x)+0.1077739351e-1*sin(1.992124494*x)-0.6872829504e-3*sin(2.988186741*x)+0.3984248988e-4*sin(3.984248988*x)

-0.6159648936e-1*sin(.9960622471*x)+0.1077739351e-1*sin(1.992124494*x)-0.6872829504e-3*sin(2.988186741*x)+0.3984248988e-4*sin(3.984248988*x)

 (1)
> 

plot(-0.6159648936e-1*sin(.9960622471*x)+0.1077739351e-1*sin(1.992124494*x)-0.6872829504e-3*sin(2.988186741*x)+0.3984248988e-4*sin(3.984248988*x), x = -3.2 .. 3.2)

 
> 

readlib(extrema):

{-0.6447467154e-1, 0.6447467152e-1}

 (2)
> 

Minima := op(1, {-0.6447467154e-1, 0.6447467152e-1}); 1; Maxima := op(2, {-0.6447467154e-1, 0.6447467152e-1})

-0.6447467154e-1

  

0.6447467152e-1

 (3)
> 

minimize(-0.6159648936e-1*sin(.9960622471*x)+0.1077739351e-1*sin(1.992124494*x)-0.6872829504e-3*sin(2.988186741*x)+0.3984248988e-4*sin(3.984248988*x), x = 0 .. 3.5, location)

minimize(-0.6159648936e-1*sin(.9960622471*x)+0.1077739351e-1*sin(1.992124494*x)-0.6872829504e-3*sin(2.988186741*x)+0.3984248988e-4*sin(3.984248988*x), x = 0 .. 3.5, location), {}

 (4)

Why Maple is not returning location of minima?

 

Download Location_for_Max_Min.mw

Regards
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