Christopher2222

4 years, 307 days


These are answers submitted by Christopher2222

Art of phugoid

May 08 2013 by Christopher2222 3629

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I didn't look into it too much but maybe this webpage will of some help http://www.math.sunysb.edu/~scott/Book331/Art_Phugoid.html

Similarily

May 01 2013 by Christopher2222 3629

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A bezier curve with these points (3,5,4) (2,8,1) (7,6,4) (0,3,2) would look like this

with(plots);
x := t-> x0*(1-t)^3+3*t*x1*(1-t)^2+3*t^2*x2*(1-t)+x3*t^3;
y := t-> y0*(1-t)^3+3*t*y1*(1-t)^2+3*t^2*y2*(1-t)+y3*t^3;
z := t-> z0*(1-t)^3+3*t*z1*(1-t)^2+3*t^2*z2*(1-t)+z3*t^3;

x0 := 3; y0 := 5; z0 := 4;
x1 := 2; y1 := 8; z1 := 1;
x2 := 7; y2 := 6; z2 := 4;
x3 := 0; y3 := 3; z3 := 2;

spacecurve([x(t), y(t), z(t), t = 0 .. 1], axes = box);

change font size

April 22 2013 by Christopher2222 3629

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You can adjust the font size.

Select the whole table -> select format -> Character -> attributes   and change the font size to something smaller than the default 12.

Without knowing exactly what's in your table but guessing it probably consists of text and equations changing your font size should get exactly what you need.

Another post inspiration

April 18 2013 by Christopher2222 3629

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For some additional interest you can check out my answer from here http://www.mapleprimes.com/posts/125024-Russian-Roulette

faster

April 16 2013 by Christopher2222 3629

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In M12

restart;gc():
with(LinearAlgebra):
time[real](RandomMatrix(500,generator=0.0..1,outputoptions=[datatype=float[8]]))

                      0.031

restart;gc():
with(LinearAlgebra):
time[real](RandomMatrix(2500,generator=0.0..1,outputoptions=[datatype=float[8]]))

           ...

windows 7 issue

April 08 2013 by Christopher2222 3629

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This issue is most likely a windows 7 issue.  It is not experienced in Maple 16.02 32bit Windows XP

intercept

April 04 2013 by Christopher2222 3629

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You could use student[intercept] or intersection from the geometry package.

simplify expand expand

April 04 2013 by Christopher2222 3629

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> assume(t::real);
> z := t = conjugate(a)*b+conjugate(c)*d;

> a := solve(z, a);

                                     ________
                        ...

simplify expand expand

April 04 2013 by Christopher2222 3629

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> assume(t::real);
> z := t = conjugate(a)*b+conjugate(c)*d;
> a := solve(z, a);

                                     ________
                         ...

animate

April 03 2013 by Christopher2222 3629

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You could try

a:=display({P,f(C)})

animate(display,[a,orientation=[A,10]],A=0..360);

 

Yes it appears if one leaves out the multiplication sign in front of a bracket with a variable, it does not fully integrate.

In this case where he mentions it works

int(int(int(-(4-6*(x+z)+12*x*z)*y*(y-z)^3, x = 0 .. 1), y = 0 .. 1), z = 0 .. 1);

                          ...

Plot quality

March 31 2013 by Christopher2222 3629

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i think it is a bit early to say there is no way to increase the quality of the plots.  in mathematica there seems to be a lot of behind the scenes operations to enure plots please the user.  with, it seems, a reduction in accessibilty or experimentation with the created structure.

@_zgj Mathematica uses antialiasing -> true by default.  Set antialiasing->false and I think the plots will compare the same.

Errors somewhere

March 25 2013 by Christopher2222 3629

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Hm, I don't think the equations are quite right. 

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