linear1;y=c+k*x

linear1

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A1	B1	C1
x	y=5+2*x	y_excel_code
0	5	=5+2*A3
1	7	=5+2*A4
2	9	=5+2*A5
3	11	=5+2*A6
4	13	=5+2*A7
5	15	=5+2*A8
X-AXIS	Y-AXIS	C9

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nanocubic1

nano_cubic1
http://spreadsheets.google.com/pub?key=pU2ZoVWxdOsxZOaxR0KnrDA

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volume

1. V=a*b*c
   
2. V1=a*a*a
   
3. V2=(a/2)*(a/2)*(a/2)=(a^3)*(1/2^3)=V1/2^3=V1/8
   
4. A1=6*a*a=6*a^2
   
5. A2=6*(a/2)*(a/2)=6*a^2/2^2=A1/2^2=A1/4
   

statistics1 ItemAnalysis

statistic for teacher KR20
http://spreadsheets.google.com/pub?key=pU2ZoVWxdOsx7Tq0k0ttqFw

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Formular

1. Mean(X)=X_bar=SX/N
   
2. var(X)=Sx²=SX²/N-(SX/N)²
   

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vector addition

2vector addition

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nucleusDecay1

Nucleus Decay1


• SpreadSheet Nucleus Decay1

  
  
• 
  nucleus decay11.png
  
• 
  Nucleus decay12.png
  

wave2

wave2 ;y=r*sin(theta+phase)

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spreadsheet wave(ysin1)

spreadsheet wave y=sin(theta)

http://www.youtube.com/sathapornprom

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