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herclau

Mr. Hermes Rozsa Iglesias

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20 years, 169 days
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These are questions asked by herclau

2-D Math...

herclau 1038 Maple
December 17 2009
0 0

What keyboard configuration must have the Win XP to use the keyboard shortcut "Shortcut Keys" and not the key combination "International" to introduce 2-D math expressions. I refer to the help "2-D Math Shortcut Keys and Hints".
The configuration I have enabled is:
Input Device Language: Spanish.
Keyboard layout / IME: United States International.
Gracias
HerClau

 

phase diagram...

herclau 1038 Maple
convert document student
November 25 2009
5 2 
Hi
How to get from the differential equation:
diff(x(t), t, t)+c*(diff(x(t), t))+k*sin(x(t)) = 0;
print(`output redirected...`); 
              / d  / d      \\     / d      \                  
              |--- |--- x(t)|| + c |--- x(t)| + k sin(x(t)) = 0

two questions...

herclau 1038 Maple
input
November 25 2009
2 0 
Hello colleagues,
Here I have for you two questions:
 How to learn to see the indexed variables, whether they are literal or standard? Without the need whattype:
whattype(x[2]);
print(`output redirected...`); # input placeholder
                                   indexed
whattype(`#msub(mi("z"),mn("1"))`);

decompose the equation...

herclau 1038 Maple
November 19 2009
2 0 
How to achieve that Maple, decompose the equation:  
 
Diff(x,t,t)+3*Diff(x,t)^2+5*x=1;
                        / 2  \            2         

command within the DETools package...

herclau 1038 Maple
package
November 10 2009
1 0
There any command within the DETools package, with which to avoid the following steps:
 

> diff(Q(t), t) = eta*(T(t)-theta)*s/l;

d eta (T(t) - theta) s

--- Q(t) = --------------------

dt l

> diff(Q(t), t) = -c*m*(diff(T(t), t));

d / d \

--- Q(t) = -c m |--- T(t)|

dt \ dt /

> rhs(diff(Q(t), t) = eta*(T(t)-theta)*s/l) = rhs(diff(Q(t), t) = -c*m*(diff(T(t), t)));

eta (T(t) - theta) s / d \

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