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Results tagged with algebraic-manipulation
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user 53596
The art of manipulating an algebraic expression into the desired form.
5
votes
3
answers
404
views
Selecting parts of algebraic expressions?
(a1 q1^2 + b1 p1^2 + c1 q1 + d1 p1 + e1) E^(a2 q1^2 + b2 p1^2 + c2 q1 + d2 p1 + e2)
Is there a command to select factor polynomial
(a1 q1^2 + b1 p1^2 + +c1 q1 + d1 p1 + e1)
and exponent of E
(a …
- 625
1
vote
3
answers
132
views
Command for approximating a function in variable limit?
The function
$ f(T) = 1/T^2 Exp(1/T) [Exp(1/T) + 1]^{-2} $
in low $T$ limit is $ f(T)=Exp(-1/T)$
and in high $T$ limit $(T)=1/T^2$.
Is there a command in mathematica to find the the function in lo …
- 625
1
vote
1
answer
104
views
List from algebraic expression?
Consider an algebraic expression
exp = a x^2 -b x +c
I want to create a list from its element:
list = {a x^2, -b x, c}
Is there any inbuilt command in Mathematica for this?
If not, is there an …
- 625
2
votes
5
answers
475
views
Reconstructing a polynomial from its coefficient array
A polynomial coefficient matrix:
mat =
CoefficientList[3 + 5 x^3 + 4 y^3 + 2 x + 6 x^2 y + 7 x y^2 + 8 x y, {x, y}];
\begin{equation}
\left(
\begin{array}{cccc}
3 & 0 & 0 & 4 \\
2 & 8 & 7 & …
- 625