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Subject | Date Asked | Expert |

Multilingual Traffic Sign Board. | 3/24/2017 | Scott A Wilson |

Q: Do you feel it is useful to design and construct Multilingual Traffic Sign Board? Thanks Prashant A: I don't think it is necessary, for the only words on the sign board are usually for the cities on ... | ||

Compute Cross Sectional area of Solids. | 3/23/2017 | Scott A Wilson |

Q: Can we compute Cross Sectional area of all Geometrical shapes and derive a Formula? Examples : ... A: Given a formula for the shape, it can be integrated, but there is only one of the following that ... | ||

Surds Matrix. | 3/22/2017 | Scott A Wilson |

Q: Can we compute Inverse of a matrix having Surds values? Thanks Prashant A: As long as the matrix is not singular, it can be inverted, though the answer may look somewhat ... | ||

Rates | 3/20/2017 | Ahmed Salami |

Q: Does $35.95 per year per $1000 indicate which one of the following and why? $35.95(year/$1000) or ... A: You can interpret $35.95 per year per $1000 as being $35.95 for every $1000 for every year. ... | ||

Largest Hypothenuse integer value in Pythagoras theorem. | 3/19/2017 | Ahmed Salami |

Q: Is it possible to find the largest Hypothenuse integer value in Pythagoras theorem? Thanks Prashant A: Suppose a² + b² = c² for some integers a,b,c. If we multiplied by n², for an integer n, then we have ... | ||

Largest Hypothenuse integer value in Pythagoras theorem. | 3/19/2017 | Scott A Wilson |

Q: Is it possible to find the largest Hypothenuse integer value in Pythagoras theorem? Thanks Prashant A: No. Tale any odd value of A. Let B=(A²-1)/2 and C=(A²+1)/2. We then have three legs of a right ... | ||

Equilibrium. | 3/18/2017 | Scott A Wilson |

Q: 1 Is Equilibrium a scalar or vector quantity? 2 What is the SI unit of Equilibrium? 3 Can we define ... A: The following is a list of items that can be scalars: distance, area, volume, speed, time, mass, ... | ||

Math question | 3/15/2017 | randy patton |

Q: I'm stuck on a question and need a little help. The question goes like this: Q: Little Johnny wants ... A: Let me make sure that I've got this straight. It seems crucial to assume that the 20 numbers Johnny ... | ||

Simple Harmonic Motion | 3/12/2017 | Scott A Wilson |

Q: Is Simple Harmonic Motion example of Partial Differential Equation? Thanks Prashant A: Simple harmonic motion is not an example of partial differential equations, but it is the solution ... | ||

Ratio | 3/10/2017 | Janet Yang |

Q: Ratio: a movie projector uses 8 mm film. The images projected on a screen has the enlargement ratio ... A: I disagree that ratios must use the same units. A common example is the ratio of boys to girls in a ... | ||

Fluid Mechanics | 2/26/2017 | randy patton |

Q: I am having trouble with this problem. I have attached the problem in an image as it is easier to ... A: OK, thanks. This problem was a little confusing to me because a) the term ω･∆U ... | ||

Error in Least Squares Method | 2/24/2017 | Scott A Wilson |

Q: I am currently trying to understand the least squares method of statistics. From what I understand ... A: The, "Least Squares Method," does just what the name says. It finds the best fit straight line such ... | ||

Fluid Mechanics | 2/21/2017 | randy patton |

Q: I have attached the problem in an image as it is easier to read. A: This can be shown by starting with one of the simplest forms of the equations of motion where we ... | ||

Fluid Mechanics | 2/15/2017 | randy patton |

Q: Given a 2D flow u=alpha*x and w=-alpha*z, show the fluid particle positions. I have x(t)= ... A: I can see that you recognize that velocity and position are related by a derivative of time, namely, ... | ||

Mathematical constants with units. | 2/12/2017 | Scott A Wilson |

Q: Can Mathematical constants be defined with units similar to physical constants? Example - PI ... A: There are two others I know of - e and i. The numbers e is used in the function f(x) = e^x. From ... | ||

Help | 2/10/2017 | randy patton |

Q: Gm Sir the question which u had replied I not understood , I asked that can u help me . Sir my ... A: Aishwarya, I am not sure what knowledge you are asking for specifically but it looks like you are ... | ||

Tensor Notation | 2/5/2017 | randy patton |

Q: Using suffix notation and the summation convention, prove that U . Del(u) = w x u + Del(1/2q^2) ... A: The answer requires a math editor and so I need to attach figures. I'm assuming you know the basics ... | ||

Fish tanks in Commercial Airlines. | 1/27/2017 | Scott A Wilson |

Q: Is it feasible to install and maintain Fish tanks in Commercial Airlines as part of interior ... A: Before I answer the question, I will say the units will be in English (and metric). If it feasible? ... | ||

linear algebra | 1/13/2017 | randy patton |

Q: i'm having trouble to find the trace in given problem... Que. Let In & On denote n×n identity and ... A: I think the trace of X should be zero. Here's my derivation: Traces have some simple and useful ... | ||

linear algebra | 1/2/2017 | randy patton |

Q: Let S be the subspace of Mn×n (the vector space of all n×n matrices) of the form AB-BA with A,B in ... A: For A and B are in Mnxn, the form S = AB - BA, is called a commutator, made famous by the ... | ||

abstract algebra | 12/7/2016 | Socrates |

Q: Sir,I'am having trouble to solve this question.it's taking much time to solve... Que. Let S10 ... A: I can give you a quick answer , assuming you know a bit about permutations and conjugates. Let C be ... | ||

Randomly dividing a number | 12/3/2016 | Scott A Wilson |

Q: I am working on a restaurant assignment and feel really lost. What number combinations can $355,546 ... A: I used a spreadsheet (by Excel). Note that is the value is in ' ', I only input what is between the ... | ||

Width Follpw-up | 11/29/2016 | Janet Yang |

Q: A wooden plaque (square) has a metal inlay (square) in the center, with a wooden strip of uniform ... A: area of metal = y² area of wood = x²-y² y²:(x²-y²) = 25:39 39y² = 25(x²-y²) = 25x² - 25y² 64y² = ... | ||

Functional analysis | 11/21/2016 | randy patton |

Q: Plz Give me an example of an unitary operator on an infinite dimentional hilbert space...thank u sir ... A: We can take as an example of an infinite Hilbert space the space of complex functions f of a complex ... | ||

Math | 10/18/2016 | Scott A Wilson |

Q: 1. What is the formula to determine the number of squares in a square box divided into 16 squares? ... A: 1. If there are n squares in the box and each square in a box is divided into 16 squares, the ... | ||

approximate value of the sum of two real numbers | 10/11/2016 | Scott A Wilson |

Q: Consider that 3 is an approximation to a real number x with an error below 0.2 and that -4 is an ... A: Thy symbol ± is for plus or minus. As in 1 ± 0.3 is used for a number between 0.7 and 1.3. We are ... | ||

Chemical reactions between acids with acids. | 10/1/2016 | Scott A Wilson |

Q: What will be the chemical reactions between acids mixed together with different Combinations? ... A: From what I remember of chemistry, there is no chemical reaction among acids. Reactions only occurs ... | ||

Logarithms | 9/21/2016 | Scott A Wilson |

Q: What's the point of having natural logarithms when you can just have log to the base of 2.7? (which ... A: The value of the letter e is determined by bankers and mathematicians. For bankers, though in ... | ||

Combinations | 9/21/2016 | Paul Klarreich |

Q: I am learning basic probability. Please help me solve the following probability problem, which seems ... A: Questioner:JohnnyX Country:Norway Category:Advanced Math Private:No Subject:Basic ProbabilityI ... | ||

Rubik's cube variation. | 9/18/2016 | Scott A Wilson |

Q: Will there be any variation in Rubik's cube if instead of six colors, there are three colors say ... A: If three of the sides are colors and three of the sides are numbers, there will be no variation. ... | ||

Uppercase and Lowercase vowels and consonants in Scrabble game. | 9/14/2016 | Scott A Wilson |

Q: Will it be useful to have both uppercase and lowercase vowels and consonants in Scrabble word power ... A: I don't think it would be useful to have lower case letters. If, for example, the word, 'FISH' was ... | ||

Trigonometry | 8/29/2016 | Paul Klarreich |

Q: Find the exact value of the sine, cosine, and tangent of –210°. and Find cot (–290°). Point P ... A: Questioner:adelefair Country:New Jersey, United States Category:Advanced Math Private:No ... | ||

Composition of Functions | 8/25/2016 | randy patton |

Q: Express the function f(x) = 1/(x+1) in the form goh. If h(x) = x+1, find the function g(x). f(x) = ... A: Defining h(x) = 1+x is a good start. Now we want to end up with f(x) = 1/(x+1) which would be f(x) ... | ||

Please help give some comment | 8/11/2016 | Paul Klarreich |

Q: I found this "note" on my school computer and would like to ask if you think it makes any sense, ... A: I am afraid this 'note' is simply incoherent rambling from someone who has nothing to say but loves ... | ||

Eigen Values | 7/27/2016 | randy patton |

Q: Patton, I am an engineering graduate..I have done vector calculus and matrix algebra. One thing ... A: I agree that eigenvalues and eigenvectors can be a bit of a mystery. I’ve come to think of ... | ||

Confusing Rates | 7/26/2016 | Sombra Shadow |

Q: What is a simple solution to the following? If 20 men can paint 5 houses in 10 days, how many days ... A: 20 men can paint 5 houses in 10 days so that is 4 houses every 10 days per man. At that rate 40 men ... | ||

Ferris/Giant Wheel Electronic toy design. | 7/26/2016 | Scott A Wilson |

Q: Is it possible to design a Ferris wheel electronic toy operated by a remote control and having push ... A: To view a few, just type, "Ferris Wheel," in the search box. I not only answered this question, but ... | ||

T square and Set square construction materials. | 7/26/2016 | Scott A Wilson |

Q: Which of the following can be considered as the best material for constructions T square and Set ... A: I would not use rubber, for that would make the square two flexible. If glass were used, the square ... | ||

Amount Invested | 7/26/2016 | Janet Yang |

Q: A, B, C, and D invest $s. B invests m times as much as A, C as much as A and B combined, and D as ... A: "A, B, C, and D invest $s." A+B+C+D = s "B invests m times as much as A" B = mA "C invests as much ... | ||

Partial Differential Equations comprising of complex numbers. | 7/25/2016 | Scott A Wilson |

Q: Can Partial Differential Equations comprise of complex numbers? Thanks Prashant A: Yes, and I'll give a simple one. It can something as simple as f' - if = 0. In that case, f(x) = ... |

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I can answer any question in general math, arithetic, discret math, algebra, box problems, geometry, filling a tank with water, trigonometry, pre-calculus, linear algebra, complex mathematics, probability, statistics, and most of anything else that relates to math. I can also say that I broke 5 minutes for a mile, which is over 12 mph, but is that relevant?

Experience in the area; I have tutored people in the above areas of mathematics for over two years in AllExperts.com. I have tutored people here and there in mathematics since before I received a BS degree back in 1984. In just two more years, I received an MS degree as well, but more on that later.
I tutored at OSU in the math center for all six years I was there. Most students offering assistance were juniors, seniors, or graduate students. I was allowed to tutor as a freshman.
I tutored at Mathnasium for well over a year.
I worked at The Boeing Company for over 5 years.
I received an MS degreee in Mathematics from Oregon State Univeristy.
The classes I took were over 100 hours of upper division credits in mathematical courses such as
calculus, statistics, probabilty, linear algrebra, powers, linear regression, matrices, and more.
I graduated with honors in both my BS and MS degrees.
Past/Present Clients: College Students at Oregon State University, various math people since college,
over 7,500 people on the PC from the US and rest the world.
**Publications**

My master's paper was published in the OSU journal.
The subject of it was Numerical Analysis used in shock waves and rarefaction fans.
It dealt with discontinuities that arose over time.
They were solved using the Leap Frog method.
That method was used and improvements of it were shown.
The improvements were by Enquist-Osher, Godunov, and Lax-Wendroff.
**Education/Credentials**

Master of Science at OSU with high honors in mathematics.
Bachelor of Science at OSU with high honors in mathematical sciences.
This degree involved mathematics, statistics, and computer science.
I also took sophmore level physics and chemistry while I was attending college.
On the side I took raquetball, but that's still not relevant.
**Awards and Honors**

I earned high honors in both my BS degree and MS degree from Oregon State.
I was in near the top in most of my classes. In several classes in mathematics, I was first.
In a class of over 100 students, I was always one of the first ones to complete the test.
I graduated with well over 50 credits in upper division mathematics.
**Past/Present Clients**

My clients have been students at OSU, people who live nearby, friends with math questions,
and several people every day on the PC. I would guess that you are probably going to be one more.