derivative

(redirected from first derivative)
Also found in: Dictionary, Thesaurus, Legal, Financial, Encyclopedia, Wikipedia.

de·riv·a·tive

(dĕ-riv'ă-tiv),
1. Relating to or producing derivation.
2. Something produced by modification of something preexisting.
3. Specifically, a chemical compound that may be produced from another compound of similar structure in one or more steps, as in replacement of H by an alkyl, acyl, or amino group.

de·riv·a·tive

(dĕ-riv'ă-tiv)
1. Relating to or producing derivation.
2. Something produced by modification of something preexisting.
3. Specifically, a chemical compound produced from another compound in one or more steps, as in replacement of H by an alkyl, acyl, or amino group.

de·riv·a·tive

(dĕ-riv'ă-tiv)
Chemical compound that may be produced from another compound of similar structure in one or more steps.
References in periodicals archive ?
Different thermal transitions have been detected and quantified in the literature using first derivatives of both storage and loss modulus data [11].
On the other hand, in an analogous manner with that resulting in (9) let us try to relate in an explicit manner the interphase Poisson's ratio to its first derivative.
Furthermore, this method requires the identification of the differences between the successive outputs as the first derivative and infer therefore that the difference of the differences between the outputs is the second derivative.
In all loading plots, the "plus" symbol is associated with a first derivative contribution concordant with the starting combined spectra, while a "minus" sign is used when its behavior is reversed.
Since derivatization of normal spectrum gives rise to reduction of band width, sharper peaks were achieved on first derivative spectrum and DD and PHZ were successfully resolved at 398 nm and 273 nm, respectively (Figure 3).
In fact, only integration sections are used to integrate a square of the first derivatives of the shape functions over the domain in the MWGM instead of the above-mentioned "element." The properties of the sections are discussed next.
From relation (3.26), we can deduce the first derivative of [N.sup.(a).sub.N] with respect to [xi] as:
In present paper we investigate some new Hermite-Hadamard type inequalities for functions whose first derivative are pre-invex function.
This method (4) requires two function and three first derivative evaluations per iteration and have sixth order convergence.
For a single peak spectrum, the first derivative is a plot of the gradient dA/d[lambda] of the absorption envelope versus wavelength and features a maximum and a minimum, the vertical distance between these is the amplitude, which is proportional to the analyte concentration theoretically, and dA/d[lambda] is zero at [[lambda].sub.max] for the band in the normal spectrum.
Now the maximum specific growth rate can be derived by substituting the inflection point in Table 4 in the first derivative in Table 2.
The difference between adjacent pixels is the first derivative of the discreet image.