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Differential Calculus

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14 Feb 2009 14:14:51 IST

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why does the change 'h' has to be small in formula for derivation

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why does the change 'h' has to be small in formula for derivation?

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saharsha kumar keshkar

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14 Feb 2009 14:18:01 IST

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in differential calculus we r talking about small change.

Anirudh Kumar

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14 Feb 2009 17:31:18 IST

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why cannot it be a large change?

Ashutosh Sharma

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15 Feb 2009 00:39:43 IST

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Visualise this.

is the slope at a point in the graph of f(x).

Here, the change in x has to be very small so that the tangent can be constructed...

Debshradha the dream that never ends

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15 Feb 2009 00:46:58 IST

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c we have to find out the slope(change in y wrt x ) on that particular point and obviously change can be found out only over a range so...we mimise this range by making h tending to zero to approximate the point where we r needed to find out the slope...

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