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What is significance of diagonal terms of variance-covariance matrix?
Wiki User
∙ 15y ago
The diagonal terms give the variances. The square root of which gives the standard deviations. The diagonal terms give the variances. The square root of which gives the standard deviations.
Wiki User
∙ 15y ago
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What is a composite or bridge entity in database terms and when is it used?
it is an entity whose primary key is composed of the combination of the primary keys of the entities that must be linked. It is used in linking tables of the M:N relationship that needs to be converted into two 1:M relationship for your database
What are advantages of slump test?
The slump test is the most widely used device worldwide. In fact, the test is so well known that often the terms workability and slump are used interchangeably, even though they have different meanings. • Specifications are typically written in terms of slump. • The slump test is simple, rugged, and inexpensive to perform. Results are obtained immediately. • The results of the slump test can be converted to yield stress in fundamental units based on various analytical treatments and experimental studies of the slump test. • Compared to other commonly used concrete tests, such as for air content and compressive strength, the slump test provides acceptable precision.
What is workability?
Workability refers to the ease of which the soil can be physically controlled for the purpose of cultivation. For example, if tilling or digging the soil produces cloddy or plate like clumps, the workability is low. From what I already know, clay soils aren't the best in terms of workability because it clumps together and is difficult to break up, whilst sandy soils usually have a much better workability but tend to be poor for cultivation because of other reasons.
What is Point of contraflexure?
The point of contraflexure is a term used in structural engineering to describe a specific location along a beam or structural member where the bending moment changes its sign. In other words, it is the point where the bending moment shifts from positive (sagging) to negative (hogging) or vice versa. The significance of the point of contraflexure lies in its influence on the behavior and design of the structure. Here are a few key points to understand its significance: Bending Moment Distribution: The presence of a point of contraflexure indicates a change in the distribution of bending moments along the span of a beam or member. It represents a transition from one type of bending moment (positive or negative) to the other. The bending moment diagram provides crucial information about the internal forces and stresses within the structure, aiding in its analysis and design. Structural Stability: The location of the point of contraflexure can impact the stability of a structure. It affects the deformation and response of the member to external loads. Engineers need to carefully consider the location of the point of contraflexure to ensure structural stability and avoid excessive deflections, buckling, or failure. Reinforcement Design: In reinforced concrete structures, the position of the point of contraflexure is a critical factor in the design of reinforcement. Reinforcement is typically provided in areas of a beam where bending moments are highest. Understanding the location of the point of contraflexure helps engineers determine the appropriate amount and placement of reinforcement to ensure structural integrity. Member Sizing: The point of contraflexure can influence the sizing and proportions of structural members. For example, in long-span beams or continuous beams, the position of the point of contraflexure may determine the need for additional supports or the introduction of additional members, such as columns or intermediate supports, to prevent excessive deflections and ensure structural stability. By considering the significance of the point of contraflexure, engineers can make informed design decisions and optimize the structural performance of a system. Analyzing and understanding the bending moment distribution, locating the point of contraflexure, and appropriately designing for the resulting forces and deformations are crucial for creating safe and efficient structures.
What is a variation of contract?
Variations are a common feature of building projects. The client or client's agent has the right to alter the designs or specifications to the build and the contractor is entitled to charge for these alterations if he is instructed to carry out these variations/extras. Be aware, that there will be additional costs incurred if scaffolding for example has to be altered or hired for longer durations, as a result of these changes. The contractor is also entitled to an extension of time on to the original time frame and the adjustment to the next stage payments to reflect these variations will be affected. It is best practice for the contractor to flag these issues and to explain to the client or agent how these variations will affect the original contract price and time scale once the variations have been suggested so that everyone is kept in the loop. Note that a variation can also mean that the cost may be reduced to reflect this, if an item is omitted or specification is reduced from the original.
What is density matrix in quantum mechanics?
It is a Hermitian positive-semidefinite matrix of trace one that describes the statistical state of a quantum system. Hermitian matrix is defined as A=A^(dagger). Meaning that NxN matrix A is equal to it's transposed complex conjugate. Trace is defined as adding all the terms on the diagonal.
What is diagonal in math terms?
this: /
What does diagonal mean in math terms?
it means to like balls
How do you enter the matrix?
You have to hack into the Matrix. In simple terms, you use WiFi to trick the Matrix into thinking you are just a regular person still hooked in.
What is the area in terms of x of a rhombus with one diagonal that is 4 times the other diagonal?
Diagonals of a rhombus are perpendicular so the product is the area. If x is the smaller diagonal, the longer is 4x, and the area if 4x2.
You can solve a system of equations by translating it into a matrix manipulating the matrix until it has eliminated terms and then translating it back to equations?
True
Why Manchester acquired global significance in terms of textile industry?
why has Manchester of India acquired global significance
What is the perimeter of a rectangle which has a diagonal of 8.50 cm and an area of 3000 square mm showing work with answer?
Here is what you are supposed to do: * Convert to consistent units. For example, convert the cm to mm. * Write an equation for the diagonal (in terms of length and width). Replace the known diagonal. * Write an equation for the area, in terms of length and width. * Solve the two equations simultaneously. * Calculate the perimeter.
What do understand by the terms synopsis of proposed research project significance of each part of the synopsis?
what do you understand by the terms synopsis of proposed research project significance of each part of the synopsis
Why has Manchester acquired global significance in terms of textile industry?
why has Manchester of India acquired global significance
The terms strategic behavior and payoff matrix both relate directly to?
Game Theory
The terms catastrophic marginal and negligable used in the risk assessment matrix refer to the level of?
These terms are commonly used in the risk assessment matrix and refer to the levels of risk. Catastrophic is the highest level of risk while negligible risk is the lowest level.
