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krozy

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  I have: restart: f:=x->(1-c...

krozy 0
September 21 2012
0 0

 

I have:

restart:

f:=x->(1-cos(x))/x;

eps:=1:

for N from -10 while abs(evalf(1/N)) < eps do 'f'(1/N) = evalf(1/N) end do;

 
                      /-1\                
                     f|--| = -0.1000000000
                      \10/                
                      /-1\                
                     f|--| = -0.1111111111
                      \9 /                
                      /-1\                
                     f|--| = -0.1250000000
                      \8 /                
                      /-1\                
                     f|--| = -0.1428571429
                      \7 /                
                      /-1\                
                     f|--| = -0.1666666667
                      \6 /                
                      /-1\                
                     f|--| = -0.2000000000
                      \5 /                
                      /-1\                
                     f|--| = -0.2500000000
                      \4 /                
                      /-1\                
                     f|--| = -0.3333333333
                      \3 /                
                      /-1\                
                     f|--| = -0.5000000000
                      \2 /                
 
I am playing around with numbers a bit but I don't think I'm on the right track..

  I have: restart: f:=x->(1-c...

krozy 0
September 21 2012

 

I have:

restart:

f:=x->(1-cos(x))/x;

eps:=1:

for N from -10 while abs(evalf(1/N)) < eps do 'f'(1/N) = evalf(1/N) end do;

 
                      /-1\                
                     f|--| = -0.1000000000
                      \10/                
                      /-1\                
                     f|--| = -0.1111111111
                      \9 /                
                      /-1\                
                     f|--| = -0.1250000000
                      \8 /                
                      /-1\                
                     f|--| = -0.1428571429
                      \7 /                
                      /-1\                
                     f|--| = -0.1666666667
                      \6 /                
                      /-1\                
                     f|--| = -0.2000000000
                      \5 /                
                      /-1\                
                     f|--| = -0.2500000000
                      \4 /                
                      /-1\                
                     f|--| = -0.3333333333
                      \3 /                
                      /-1\                
                     f|--| = -0.5000000000
                      \2 /                
 
I am playing around with numbers a bit but I don't think I'm on the right track..

maxima and minima code error...

krozy 0
September 21 2012
0 0 
@Markiyan Hirnyk3578

minima := []: maxima := []:
for j to nops(CP) do if evalf(df(CP[j]-0.1e-3)) > 0 and evalf(df(CP[j]+0.1e-3)) < 0
 then maxima := [op(maxima), CP[j]] 
else if evalf(df(CP[j]-0.1e-3)) < 0 and  evalf(df(CP[j]+0.1e-3)) > 0
 then minima := [op(minima), CP[j]] 
end if:
 end if:

^^ I keep getting a logic error with this - I even took directly from your maple file and still.

maxima and minima code error...

krozy 0
September 21 2012 
@Markiyan Hirnyk3578

minima := []: maxima := []:
for j to nops(CP) do if evalf(df(CP[j]-0.1e-3)) > 0 and evalf(df(CP[j]+0.1e-3)) < 0
 then maxima := [op(maxima), CP[j]] 
else if evalf(df(CP[j]-0.1e-3)) < 0 and  evalf(df(CP[j]+0.1e-3)) > 0
 then minima := [op(minima), CP[j]] 
end if:
 end if:

^^ I keep getting a logic error with this - I even took directly from your maple file and still.
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