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Free Math Help
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For the highest-level (post-calculus) math questions that don't fall into any other category.
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C
dual quaternion displacement in the Z direction by 167 and rotate 10 degrees
cja7928
Jan 27, 2018
Replies
0
Views
506
Jan 27, 2018
cja7928
C
W
Switching Numbers: infinite ordered series with two elements in the wrong order
wonnacott
Jan 24, 2018
Replies
0
Views
667
Jan 24, 2018
wonnacott
W
J
Linear Algebra: uses, in mathematics and otherwise?
JeffM
Dec 30, 2017
Replies
7
Views
1K
Jan 23, 2018
mmm4444bot
T
cross product with scalars: Given A=4a_x-2a_y+6a_z, find a_x x(cross) A
Tramachine
Jan 15, 2018
Replies
1
Views
878
Jan 16, 2018
barrick
B
M
Inverse elements for monoid of all injective real functions together with defined op
missandtroop
Jan 14, 2018
Replies
1
Views
547
Jan 15, 2018
barrick
B
C
Linear Algebra: Proving that a matrix is invertible
cancan460
Jan 14, 2018
Replies
0
Views
389
Jan 14, 2018
cancan460
C
E
Combinatorics - identity: sum[0<=k<=n/2](-1)^k binom(n-k,k) 2^(n-2k) = n+1 ...?
evebart
Jan 11, 2018
Replies
1
Views
462
Jan 11, 2018
stapel
P
Euler's Identity and i: how to solve e^(pi*i) = -1 for i
predarsh
Jan 6, 2018
Replies
9
Views
1K
Jan 8, 2018
Dr.Peterson
S
What does f(u)(t-u) mean in this convolution equation?
Sofia12345
Jan 7, 2018
Replies
1
Views
460
Jan 7, 2018
Dr.Peterson
B
Functional Equation: f(x)+f(x+1)=(f(x+2))/(x+1)
Bulkyd
Jan 5, 2018
Replies
4
Views
743
Jan 6, 2018
stapel
S
Weight factors (values): rho(q_0, q_1) = w_t ||X_0 - X_1|| + w_r f(R_0, R_1)
semir
Dec 13, 2017
Replies
1
Views
759
Dec 14, 2017
tkhunny
B
Linear Algebra: For f, g C[0,1], let <f,g>=(integral from 0 to 1) f(x)g(x) dx...
boazuw
Dec 11, 2017
Replies
1
Views
568
Dec 14, 2017
barrick
B
P
Approximated vertex cover algorithm on random graph
paul2834
Dec 13, 2017
Replies
0
Views
393
Dec 13, 2017
paul2834
P
M
Chemistry related calculations
Mikey1
Dec 12, 2017
Replies
1
Views
519
Dec 12, 2017
stapel
M
Discrete convolution: h[n] = a^(n+1) * u[n+1], x[n] = exp(j*w*n) * u[n]
martin336
Dec 9, 2017
Replies
0
Views
564
Dec 9, 2017
martin336
M
M
convolution and z-Transform
martin336
Dec 9, 2017
Replies
0
Views
348
Dec 9, 2017
martin336
M
R
Dsolve Perturbation n'(1-epsilon(u')^2)=-y with mathematica
rodiena
Dec 9, 2017
Replies
1
Views
1K
Dec 9, 2017
Subhotosh Khan
S
N
Linear Algebra Matrix Representation: 1->3, X->2X-1, X^2->X^2-X-1
nhallowell
Dec 7, 2017
Replies
1
Views
647
Dec 7, 2017
stapel
W
Sorting integers into 3 equal (almost) groups
William444555
Dec 2, 2017
Replies
8
Views
1K
Dec 4, 2017
Dr.Peterson
S
Proof by induction: For finite sets A, B w/ cardinality n, m >= 1, show there are...
sita
Nov 28, 2017
Replies
1
Views
909
Dec 1, 2017
barrick
B
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