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Yes, a scalar can be a negative number. For instance:

c<x₁,x₂> = <cx₁,cx₂> such that <x₁,x₂> is a vector.

Let c = -1 for instance. Then, we have this vector:

<-x₁,-x₂>

Compared to <x₁,x₂>, <-x₁,-x₂> has negative signs.

In physics and mathematics, if we multiply the vector or something by a negative value scalar, then the direction of the vector is reversed, and the magnitude stays the same. If the magnitude increases/decreases, and the direction of the vector is reversed, then we can multiply the vector by any negative non-1 scalar value.

Q: Can scalar be a negative number?

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A matrix and a scalar is a matrix. S + M1 = M2. A scalar is a real number whose square is positive. A matrix is an array of numbers, some of which are scalars and others are vectors, square of the number is negative. A matrix can be a quaternion, the sum of a scalars and three vectors.

No, Speed is always greater than or equal to zero. However, velocity can be negative, which just means you have a positive speed in the opposite direction! (scalar(number) versus vector).

-234 is greater.. Because in the number line if we go in negative side then the higher the scalar value lower the vector value.

In mathematics and physics, a scalar field associates a scalar value to every point in a space. The scalar may either be a mathematical number, or a physical quantity.

Yes.

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No, scalar quantities cannot be negative because they only have magnitude, not direction. However, scalar quantities can be zero if the magnitude of the quantity is zero.

radius is a scalar quantity, it can not have a negative value.

A scalar quantity may have positive and negative values - it is simply a real number. But it doesn't have a direction. Think of it as a "vector in one dimension" - whereas the usual vectors have at least 2 dimensions.

A matrix and a scalar is a matrix. S + M1 = M2. A scalar is a real number whose square is positive. A matrix is an array of numbers, some of which are scalars and others are vectors, square of the number is negative. A matrix can be a quaternion, the sum of a scalars and three vectors.

A positive scalar multiplied by a vector, will only change the vector's magnitude, not the direction. A negative scalar multiplied by the vector will reverse the direction by 180Â°.

Yes, a scalar product can be negative if the angle between the two vectors is obtuse (greater than 90 degrees). The scalar product is the dot product of two vectors and is equal to the product of their magnitudes and the cosine of the angle between them. A negative scalar product indicates that the vectors are pointing in opposite directions.

Scalars can be negative, and so can a change in a scalar value.Take temperature:You can have a temperature of -10 degrees.If temperature falls from 20 to 5 degress, the change was -15 degree.The negative value of the scalar is a consequence of where you take the "zero" to be.With speed you have to be very careful because speed is the scalar bit of velocity. Velocity with no consideration of direction.

A vector has a direction associated with it. A number (or scalar) does not.

There is no direction in number of moles, so it is scalar.

The number of passengers on a plane is a scalar quantity. Scalars have only magnitude and do not have direction.

Zero is a scalar that is both positive and negative. It holds a value of 0 on the number line and is neither positive nor negative.

The sum of two negative integers is always negative due to the commutative and associatve property. In other words, summing or adding two negative numbers results in a larger scalar negative number. ex -1 + -1 = -2