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What is the geometric meaning of the gradient representation of a binary function? Seeking envelopment····
Hello,
Gradient is a vector (vector). When the directional derivative of a function along the direction at a certain point obtains the maximum value at that point, that is, the function changes the fastest along the direction at that point and the change rate is the largest (the modulus of the gradient)
What if 5 1 5 equals 24? Speed °
five × (5 - 1 ÷ 5)=24
five × (5 - (1 ÷ 5))=24
(5 - 1 ÷ 5) × 5=24
(5 - (1 ÷ 5)) × 5=24
The speed of an object's motion is expressed in terms of speed, which is equal to the speed () that the moving object passes through in unit ()
Time displacement
What physical quantity does velocity represent and what is it equal to?
Speed is a physical quantity indicating the speed of an object's movement. It is equal to the displacement divided by the time required to pass through this displacement, v = x / T
However, to accurately express the speed of motion, we need to compare its instantaneous speed, that is, the time is minimal and close to 0
The speed of the ship is expressed in knots, and 1 knot is equal to:
1852m/s
When the car runs in a straight line, the acceleration direction is consistent with the speed direction. When the acceleration is reduced to 0, the car's speed reaches the maximum. How to understand this?
Acceleration means that the car is accelerating all the time, which is just a matter of acceleration speed. When the acceleration decreases to zero, the car will no longer increase speed, so the speed is the maximum at this time
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