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tkhunny
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tkhunny
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04-12-2005
Last Activity
06-21-2017
03:39 PM
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06-21-2017,
03:38 PM
tkhunny
replied to a thread
I am a math idiot. Can someone please help me with this before I blow a fuse?
in
Arithmetic
And please eliminate such language as this: more or less 7" x 7" roughly 5 down Please be more precise.
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4 replies | 121 view(s)
06-20-2017,
11:28 AM
tkhunny
replied to a thread
How to calculate p.value from Kolmogorov-Smirnov Test?
in
Probability / Statistics
Calculate (or get software to do it for you) all possible K-S results. Call this KS. Find all the results that exceed your Observed Value. Call...
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1 replies | 102 view(s)
06-19-2017,
09:18 AM
tkhunny
replied to a thread
Plotting an ellipse w/ 15 points; need to find best fit curve
in
Advanced Math
One traditional way is to find the foci and the fixed length that is the sum of the distances from both foci.
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1 replies | 101 view(s)
06-16-2017,
05:03 PM
tkhunny
started a thread
Hate the WYSIWYG Editor
in
Administration Issues
HATE this editor. Does everyone have as much trouble as I or am I special?
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1 replies | 53 view(s)
06-16-2017,
04:59 PM
tkhunny
replied to a thread
Is that answer correct? 5/+81.87* (4-j3+(3sqrt[2]/-45*)/(7-j1))
in
Advanced Math
It is quite acceptable to find errors. Publishing is not magic. If you believe it to be wrong, then fix it and move on. Quickly checking just...
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13 replies | 446 view(s)
06-16-2017,
02:38 PM
tkhunny
replied to a thread
Is that answer correct? 5/+81.87* (4-j3+(3sqrt[2]/-45*)/(7-j1))
in
Advanced Math
Show us your intermediate results. Don't make us guess what you are doing. Explain the Phasor notation, for example.
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13 replies | 446 view(s)
06-16-2017,
09:26 AM
tkhunny
replied to a thread
Is that answer correct? 5/+81.87* (4-j3+(3sqrt[2]/-45*)/(7-j1))
in
Advanced Math
Why don't you show us YOUR workings and you tell us if it's correct.
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13 replies | 446 view(s)
06-16-2017,
09:15 AM
tkhunny
replied to a thread
Solving equation where x is negative: why multiply by -1 for 3 - 7x = 5 ?
in
Beginning Algebra
It is a sad state of affairs when an instructor tries to suggest there is ONLY ONE WAY to proceed. This particular instructor apparently doesn't...
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3 replies | 280 view(s)
06-15-2017,
08:53 PM
tkhunny
replied to a thread
Trigo, help pls: 2sin^2 (5x/2) + 4sin^2 (x/2)=3+cosx
in
Geometry and Trig
Unclear what is wanted. Please show your best work,
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3 replies | 152 view(s)
06-15-2017,
12:15 PM
tkhunny
replied to a thread
correct way to write trig ratio in an equation? you ar
in
Calculus
"cot" doesn't mean anything without the argument. It is unlikely that it means *t. The parentheses are just to make sure you don't think it is...
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2 replies | 168 view(s)
06-15-2017,
12:13 PM
tkhunny
replied to a thread
Polynomial represents a C-D Nozzle!
in
Geometry and Trig
Well, sure it CAN be done, but should it? Are you CERTAIN a polynomial is an appropriate model? Polynomials can exhibit unexpected behavior outside...
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1 replies | 105 view(s)
06-15-2017,
12:05 PM
tkhunny
replied to a thread
Hard Problem: sin ((2*pi*x)/23), sin ((pi*x)/14) and sin ((2*pi*x)/33)
in
Geometry and Trig
What are the individual Periods of your three sine functions?
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3 replies | 186 view(s)
06-13-2017,
03:17 PM
tkhunny
replied to a thread
Cartesian to Polar conversion matrix
in
Geometry and Trig
Very good question, but your question doesn't quite make sense. "Polar Coordinates" implies 2-dimensional structure. It can be PART of a 3D...
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1 replies | 111 view(s)
06-13-2017,
03:10 PM
tkhunny
replied to a thread
Can you confirm that I have done this correct please?
in
Calculus
Feel free to calm down. We have volunteers. They come when they can. Has anyone charged you anything? Very early on, you dropped from three...
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4 replies | 214 view(s)
06-13-2017,
12:58 PM
tkhunny
replied to a thread
quadratic mean of all values of r of a circle
in
Calculus
Not at all. It is ill-defined. Listen to Stapel.
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22 replies | 1782 view(s)
06-13-2017,
12:56 PM
tkhunny
replied to a thread
Distribution hash table with probability computing: You have n people, m object...
in
Probability / Statistics
Time for you to share your thoughts. It's your major.
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1 replies | 160 view(s)
06-13-2017,
12:54 PM
tkhunny
replied to a thread
Integration- Area under Graph help? y = 4 - e^{(1/2)x} & tangent at axis
in
Calculus
You may find it simpler by using the y-axis and x = f(y).
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6 replies | 204 view(s)
06-12-2017,
10:06 AM
tkhunny
replied to a thread
Boxes per hour: how many boxes per hour of each type did I stock?
in
Finance/Business Math
Rule of Thumb, if you don't know a quantity, give it a name so you can talk about it. Question: What are the individual rates? Answer: r = rate...
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1 replies | 98 view(s)
06-12-2017,
10:02 AM
tkhunny
replied to a thread
Combinatorics: how many different 5-digit numbers, bigger than 20000, can be made...?
in
Advanced Math
#1 -- 2, 3, or 4 -- Call these xi There remain only a few patterns: xi, xi, 1, 1 xi, 1, xi, 1 xi, 1, 1, xi 1, xi, xi, 1 1, xi, 1, xi 1, 1,...
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2 replies | 188 view(s)
06-12-2017,
09:50 AM
tkhunny
replied to a thread
Volume of Rotation of y = (12)/(x^2 - 16) around Axis
in
Calculus
Have you considered Shells, rather than Disks? You may wish to consider separately the perfectly cylindrical piece that does not require the...
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2 replies | 151 view(s)
06-12-2017,
09:33 AM
tkhunny
replied to a thread
Length of Arc
in
Geometry and Trig
What is the length of the arc of the ENTIRE circle? What is length of the arc of HALF the circle? Please show your work.
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1 replies | 102 view(s)
06-12-2017,
09:31 AM
tkhunny
replied to a thread
Determine an identity for cot 3θ.
in
Geometry and Trig
Please demonstrate your attempts. Have you considered that cot(3x) = cot(x + 2x)?
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4 replies | 217 view(s)
06-07-2017,
11:10 AM
tkhunny
replied to a thread
Solve x^4 - x - 2 = 0 (How to get Wolfram's answer?)
in
Intermediate/Advanced Algebra
x^{2} - 1 = 0 has two Real Solutions. Can you name them? x^{2} + 1 = 0 has two Complex Solution. Can you name them?
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9 replies | 517 view(s)
06-06-2017,
09:13 AM
tkhunny
replied to a thread
Calculate the value of M
in
Beginning Algebra
Perhaps you could share the ENTIRE problem and show ANY of your own work? That might give us a clue.
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5 replies | 396 view(s)
06-05-2017,
09:32 AM
tkhunny
replied to a thread
Volume of Revolution for Polar Equations
in
Calculus
Unfortunately, "(pi)(integral)" doesn't mean anything. Demonstrate exactly what it is you mean and we can help. Note: Make sure you don't...
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1 replies | 174 view(s)
06-05-2017,
09:28 AM
tkhunny
replied to a thread
Reducing all degrees down to "out of 360"
in
Geometry and Trig
Same Thing as Denis suggested Division 405 / 360 = 1.125 Discard Integer Portion and multiply. 0.125 *360 = 45
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2 replies | 227 view(s)
06-02-2017,
09:04 AM
tkhunny
replied to a thread
Work done by force F=(3xy+4)i + y^3j around the boundary of a triangle
in
Calculus
Do you mean the WORK necessary to move an object AROUND the path AGAINST the force?
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3 replies | 305 view(s)
05-30-2017,
10:30 AM
tkhunny
replied to a thread
Apollonian circles, but then harder
in
Geometry and Trig
You have: 1) Fixed Base 2) Fixed Height 3) Fixed Ratio Are you SURE there are more than 2 solutions?
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3 replies | 510 view(s)
05-30-2017,
10:27 AM
tkhunny
replied to a thread
quadratic mean of all values of r of a circle
in
Calculus
Still doesn't make much sense. Why would this value you seek be different from the same consideration on a straight line?
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22 replies | 1782 view(s)
05-30-2017,
10:21 AM
tkhunny
replied to a thread
From point to surface by rotation
in
Advanced Math
Are you SURE that makes sense? Please provide a better description AND show all YOUR best work.
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2 replies | 358 view(s)
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About tkhunny
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About tkhunny
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06-21-2017
03:39 PM
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