Handbook of mathematics for engineers and scienteists part 93 pot
Handbook of mathematics for engineers and scienteists part 93 pot
... f (0)andf
(0) are the initial conditions.
More details on the properties of the Laplace transform and the inverse Laplace transform
can be found in Section 11.2. The Laplace transforms of some ... to
(1)
t
Solution of the ordinary differential equation
with the boundary conditions
Application of the inverse
Laplace transform PL.5.1.(2)
{
Problem for transform =
ordinary differen...
Handbook of mathematics for engineers and scienteists part 4 potx
... Press, 1995 and
2003; A. D. Polyanin and A. V. Manzhirov, Handbook of Integral Equations, CRC Press,
1998; A. D. Polyanin, Handbook of Linear Partial Differential Equations for Engineers
and Scientists, ... compendium of mathematical
definitions, formulas, and theorems intended for researchers, university teachers, engineers,
and students of various backgrounds in...
Handbook of mathematics for engineers and scienteists part 5 potx
... A ∩B stands for the intersection (com-
mon part) of sets A and B
⊂ inclusion; A ⊂ B means that the set A is part of the set B
⊆ nonstrict inclusion; A ⊆B means that the set A is part of the set ... of numbers a and b is denoted by a + b and has the property
a + b = b + a
– minus sign; the difference of numbers a and b is denoted by a – b
⋅ multiplication sign; the pro...
Handbook of mathematics for engineers and scienteists part 9 pot
... 2πn]. For x =
π
2
+ 2πn, it attains its maximal value (y = 1), and for
x =–
π
2
+ 2πn it attains its minimal value (y =–1). The graph of the function y =sinx is
called the sinusoid or sine curve and ... on every
segment [–π + 2πn, 2πn] and is a decreasing function on every segment [2πn, π + 2πn],
n = 0,
1, 2, For x = 2πn it attains its maximal value (y = 1), and for x = π +...
Handbook of mathematics for engineers and scienteists part 15 pot
... r is the radius of the upper base and h is the altitude of the frustum of a cone.
3.2.3-3. Sphere. Spherical parts. Torus.
1
◦
.Thesphere of radius R centered at O is the set of points in space ... h),
(3.2.3.10)
where R and h are the radius and the height of the spherical cap.
3
◦
. A portion of a ball bounded by the curved surface of a spherical cap and the conical
s...
Handbook of mathematics for engineers and scienteists part 19 potx
... r
1
(M
0
)andr
2
(M
0
) are the lengths of the focal radii of M
0
.
The tangent at an arbitrary point M
0
(x
0
, y
0
) of an ellipse forms acute angles ϕ
1
and ϕ
2
with the focal radii of the point of ... y) of an ellipse with the foci F
1
(–c, 0)andF
2
(c, 0)
are called the left and right focal radii of this point. We denote the lengths of the left and
right focal radii...
Handbook of mathematics for engineers and scienteists part 20 pot
... is the locus of points for which the
ratio of distances to the focus and the directrix is equal to 1:
r
|x + p/2|
= 1.(4.4.4.6)
4.4.4-4. Equation of tangent and optical property of parabola.
The ... ϕ
,(4.4.3.16)
where upper and lower signs correspond to right and left parts of a hyperbola, respectively.
4.4.4. Parabola
4.4.4-1. Definition and canonical equation of para...
Handbook of mathematics for engineers and scienteists part 24 pot
... 0.
4.6.1-12. Equation of plane passing through line of intersection of planes.
The planes passing through the line of intersection of the planes A
1
x +B
1
y + C
1
z + D
1
= 0
and A
2
x + B
2
y + ... cosines of the angles α, β ,and formed by this straight line (the direction of
the vector R
0
) with the coordinate axes OX, OY ,andOZ. These cosines can be expressed
via the coor...
Handbook of mathematics for engineers and scienteists part 30 pot
... a
nn
=
n
k=1
a
ik
A
i
k
=
n
k=1
a
kj
A
k
j
.
This formula is also called the ith row expansion of the determinant of A andalsothejth
column expansion of the determinant of A.
Example 1. Let us find the third-order determinant of the matrix
A ... [a
i
a
j
a
B].
Note that if A and B are square matrices and the number of rows in C is equal to the
number of ro...
Handbook of mathematics for engineers and scienteists part 32 potx
... to both spaces L
1
and L
2
.Such
elements form a subspace of V.
The sum of subspaces L
1
and L
2
of one and the same linear space V is, by definition,
the set of all elements of V that can be represented ... of matrices A and B consist of eigenvalues λ
j
and μ
k
, respec-
tively. Then the spectrum of the Kronecker product A ⊗ B is the set of all products λ
j
μ
k
.
T...