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Me vyslo toto:<br>
<br>
X=sqrt( 4/3 * (a^2 + ab + b^2))<br>
<br>
Tedy temer to same co vam. <br>
(asi tam bude chybka kdy misto 0.25a^2 mate jen 0.25a)<br>
<br>
J.S.<br>
<br>
<br>
Tomas Mainzer wrote:
<blockquote cite="mid:FEAAC3DE850D4CD7A868561A8DA34733@penguin"
type="cite">
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<div><font face="Arial" size="2">tak v tomto pripade je uloha
resitelna:</font></div>
<div><font face="Arial" size="2">lze vyjit napr. z tohoto:</font></div>
<div><font face="Arial" size="2">(a,b=vzorky, X=amplituda)</font></div>
<div><font face="Arial" size="2">a=X*sin(fi)</font></div>
<div><font face="Arial" size="2">b=X*sin(fi+120st)</font></div>
<div><font face="Arial" size="2">...me osobne po uprave vyslo:</font></div>
<div><font face="Arial" size="2">X=sqrt((0.75*a^2+b^2+b*a+0.25*a)/0.75)</font></div>
<div><font face="Arial" size="2">(bez zaruky, mohl jsem pri upravach
udelat chybu)</font></div>
<div><font face="Arial" size="2">T.M.</font></div>
<div> </div>
<blockquote
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<div
style="font-family: arial; font-style: normal; font-variant: normal; font-weight: normal; font-size: 10pt; line-height: normal; font-size-adjust: none; font-stretch: normal;">-----
Original Message ----- </div>
<div
style="background: rgb(228, 228, 228) none repeat scroll 0%; -moz-background-clip: -moz-initial; -moz-background-origin: -moz-initial; -moz-background-inline-policy: -moz-initial; font-family: arial; font-style: normal; font-variant: normal; font-weight: normal; font-size: 10pt; line-height: normal; font-size-adjust: none; font-stretch: normal;"><b>From:</b>
<a moz-do-not-send="true" title="kovacik@toolsquare.com"
href="mailto:kovacik@toolsquare.com">Dipl.-Ing. Michal Kovácik</a> </div>
<div
style="font-family: arial; font-style: normal; font-variant: normal; font-weight: normal; font-size: 10pt; line-height: normal; font-size-adjust: none; font-stretch: normal;"><b>To:</b>
<a moz-do-not-send="true" title="hw-list@list.hw.cz"
href="mailto:hw-list@list.hw.cz">HW-news</a> </div>
<div
style="font-family: arial; font-style: normal; font-variant: normal; font-weight: normal; font-size: 10pt; line-height: normal; font-size-adjust: none; font-stretch: normal;"><b>Sent:</b>
Tuesday, January 27, 2009 3:15 PM</div>
<div
style="font-family: arial; font-style: normal; font-variant: normal; font-weight: normal; font-size: 10pt; line-height: normal; font-size-adjust: none; font-stretch: normal;"><b>Subject:</b>
Re: velkost amplitudy sinusovky z dvoch hodnot </div>
<div><br>
</div>
<div><font face="Arial" size="2">Viem, ze medzi tymi dvoma
vzorkami, ktore za periodu mam je vzdy konstatny uhol 120 stupnov.
Kolko ubehlo od prechodu nolou neviem a ani to nemam ako zistovat. </font></div>
<div> </div>
<div><font face="Arial" size="2">Michal</font></div>
<blockquote
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<div
style="font-family: arial; font-style: normal; font-variant: normal; font-weight: normal; font-size: 10pt; line-height: normal; font-size-adjust: none; font-stretch: normal;">-----
Original Message ----- </div>
<div
style="background: rgb(228, 228, 228) none repeat scroll 0%; -moz-background-clip: -moz-initial; -moz-background-origin: -moz-initial; -moz-background-inline-policy: -moz-initial; font-family: arial; font-style: normal; font-variant: normal; font-weight: normal; font-size: 10pt; line-height: normal; font-size-adjust: none; font-stretch: normal;"><b>From:</b>
<a moz-do-not-send="true" title="t.mainzer@gmail.com"
href="mailto:t.mainzer@gmail.com">Tomas Mainzer</a> </div>
<div
style="font-family: arial; font-style: normal; font-variant: normal; font-weight: normal; font-size: 10pt; line-height: normal; font-size-adjust: none; font-stretch: normal;"><b>To:</b>
<a moz-do-not-send="true" title="hw-list@list.hw.cz"
href="mailto:hw-list@list.hw.cz">HW-news</a> </div>
<div
style="font-family: arial; font-style: normal; font-variant: normal; font-weight: normal; font-size: 10pt; line-height: normal; font-size-adjust: none; font-stretch: normal;"><b>Sent:</b>
Tuesday, January 27, 2009 2:42 PM</div>
<div
style="font-family: arial; font-style: normal; font-variant: normal; font-weight: normal; font-size: 10pt; line-height: normal; font-size-adjust: none; font-stretch: normal;"><b>Subject:</b>
Re: velkost amplitudy sinusovky z dvoch hodnot </div>
<div><br>
</div>
<div><font face="Arial" size="2">....nemate li dalsi info (jako
napr. z jake casti periody mate vzorky) tak myslim neni ani teoreticka
sance.</font></div>
<div><font face="Arial" size="2">T.M.</font></div>
<div> </div>
<div>----- Original Message ----- </div>
<blockquote
style="border-left: 2px solid rgb(0, 0, 0); padding-right: 0px; padding-left: 5px; margin-left: 5px; margin-right: 0px;">
<div
style="background: rgb(228, 228, 228) none repeat scroll 0%; -moz-background-clip: -moz-initial; -moz-background-origin: -moz-initial; -moz-background-inline-policy: -moz-initial; font-family: arial; font-style: normal; font-variant: normal; font-weight: normal; font-size: 10pt; line-height: normal; font-size-adjust: none; font-stretch: normal;"><b>From:</b>
<a moz-do-not-send="true" title="kovacik@toolsquare.com"
href="mailto:kovacik@toolsquare.com">Dipl.-Ing. Michal Kovácik</a> </div>
<div
style="font-family: arial; font-style: normal; font-variant: normal; font-weight: normal; font-size: 10pt; line-height: normal; font-size-adjust: none; font-stretch: normal;"><b>To:</b>
<a moz-do-not-send="true" title="hw-list@list.hw.cz"
href="mailto:hw-list@list.hw.cz">HW-news</a> </div>
<div
style="font-family: arial; font-style: normal; font-variant: normal; font-weight: normal; font-size: 10pt; line-height: normal; font-size-adjust: none; font-stretch: normal;"><b>Sent:</b>
Tuesday, January 27, 2009 2:03 PM</div>
<div
style="font-family: arial; font-style: normal; font-variant: normal; font-weight: normal; font-size: 10pt; line-height: normal; font-size-adjust: none; font-stretch: normal;"><b>Subject:</b>
velkost amplitudy sinusovky z dvoch hodnot </div>
<div><br>
</div>
<div><font face="Arial" size="2">Zdravim konferenciu. </font></div>
<div> </div>
<div><font face="Arial" size="2">Mam nasledovny problem.
Vzorkujem sinusovku, stihnem urobit len dve vzorky za jednu periodu a z
nich potrebujem zistit velkost amplitudy. </font></div>
<div><font face="Arial" size="2">Viem, ze sa to da matematicky
vypocitat, len nikde nemozem najst nejaky pouzitelny vzorec alebo navod
ako na to.</font></div>
<div><font face="Arial" size="2">Vie ma niekto nakopnut
spravnym smerom? </font></div>
<div> </div>
<div> </div>
<div><font face="Arial" size="2">Michal. </font></div>
<div> </div>
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