- #1
flyingpig
- 2,579
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Alright I have been trying to figure out these commands for the past month and I could not get them. Hopefully one of you could lead me to it
Multiple Integrals in Polar Coordinates
Here is an example
Integrate[r, {r, 1, sqrt(2sin(2*theta))}, {theta, pi/12, 5pi/12}]
I typed this in and I get
[PLAIN]http://www3.wolframalpha.com/Calculate/MSP/MSP135219f87b7148ah12d000004fca37i7cda808h9?MSPStoreType=image/gif&s=25&w=291&h=50
It does not give me a numerical answer
Row Operations with Elementary steps
I don't even know how to get this. I can get the rref(M) of a matrix M, but that's pretty much it...
I like to know the commands for echelon form
Leave the final answer in rref(A) without factoring
Let's say I have a matrix [tex]\begin{bmatrix}
1 & 5 & 7\\
1& -2 &-2
\end{bmatrix}[/tex]
I punch this into Wolframalpha using RowReduce{{1,5,7},{1,-2,-2}} and I get
[PLAIN]http://www4d.wolframalpha.com/Calculate/MSP/MSP30119f87cg4dgd3fi1h00005c11c2c4cc7d2i70?MSPStoreType=image/gif&s=60&w=76&h=36
See how they factor the 7 out? How do you make it so that it DOESN'T do that?
Leave answers in decimal in matrix
Pretty much the opposite of what is requested from before.
Multiple Integrals in Polar Coordinates
Here is an example
Integrate[r, {r, 1, sqrt(2sin(2*theta))}, {theta, pi/12, 5pi/12}]
I typed this in and I get
[PLAIN]http://www3.wolframalpha.com/Calculate/MSP/MSP135219f87b7148ah12d000004fca37i7cda808h9?MSPStoreType=image/gif&s=25&w=291&h=50
It does not give me a numerical answer
Row Operations with Elementary steps
I don't even know how to get this. I can get the rref(M) of a matrix M, but that's pretty much it...
I like to know the commands for echelon form
Leave the final answer in rref(A) without factoring
Let's say I have a matrix [tex]\begin{bmatrix}
1 & 5 & 7\\
1& -2 &-2
\end{bmatrix}[/tex]
I punch this into Wolframalpha using RowReduce{{1,5,7},{1,-2,-2}} and I get
[PLAIN]http://www4d.wolframalpha.com/Calculate/MSP/MSP30119f87cg4dgd3fi1h00005c11c2c4cc7d2i70?MSPStoreType=image/gif&s=60&w=76&h=36
See how they factor the 7 out? How do you make it so that it DOESN'T do that?
Leave answers in decimal in matrix
Pretty much the opposite of what is requested from before.
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