An Elementary Treatise on the Differential and Integral Calculus |
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Common terms and phrases
arbitrary constant asymptote axis become infinite bx² calculus co-ordinates condition considered corresponding value cos.x curve cx² d²u d³u d³y determine differential calculus differential equation dx dy dx² dy dx dy² eliminated equal equations F(xy exponent expressed factor ferential coefficient finite formula fraction fudx give h h2 Hence imaginary independent variables integral Let the equation Let udx limits logarithms maxima and minima maximum or minimum method negative obtained osculating osculating circle osculating curve parabola partial differential coefficients partial differential equations plane positive powers of h primitive equation PROP proposed equation quantities rational rational function result roots second differential coefficient SECTION sin.x singular solution substituted successive differential coefficients supposed system of values tangent Taylor's series Taylor's theorem theorem tion vanish variation
Popular passages
Page 107 - To divide a given number a, into two parts, such that the product of the mth power of the one and the nth power of the other shall be the greatest possible. Let x be one part, then a — * is the other, and y = a...
Page 154 - J dx which shew that the tangent is inclined to the axis of x at an angle whose tangent is...
Page 174 - Equation (4) states that a constant factor may be taken outside the sign of integration; (5) states that the definite integral of the sum of two functions is equal to the sum of the integrals of the separate functions. Equations (4) and (5) permit us to work with linear combinations of functions. Thus, / [cifi(x) +••••+ cnfn(x)]dx = ct / fi(x)dx + • • • + cn I fn(x)dx.
Page 12 - ... by multiplying the differential of each function by the product of the others.
Page 12 - For instance, the product formula is d(uv) = udv + v du: in words, the differential of the product of two functions is equal to the first function times the differential of the second plus the second times the differential of the first.
Page 7 - ... quantities. Again ; we know by the theory of equations, that every radical has as many different values as there are units in its exponent; and that, consequently, every...
Page 464 - E^, are in the plane This is the equation of a plane passing through the centre of the indicatrix and parallel to the planes which touch the indicatrix at either of the points where the line X /2 v intersects it.
Page 174 - Passing to the limit we have cue whence [duv = vPdx + uQdx — vdu + udv, that is : The differential of the product of two functions of the same variable, is equal to the sum of the products obtained by multiplying each function by the differential of the other.
Page 141 - ... case <£'(#i) cannot be either positive or negative (Art. 48) and must therefore vanish, since it is by hypothesis finite. The geometrical statement of this theorem is that if a curve meets the axis of x at two points, and if the gradient is everywhere finite, there must be at least one intervening point at which the tangent is parallel to the axis of x. See, for example, the graph of sm x on p.
Page 150 - У = x' (i — x*)' : find all the points at which the tangent is parallel to the axis of x.