2.16.41 Problems 4001 to 4100

Table 2.98: Main lookup table. Sorted sequentially by problem number.

#

ODE

Program classification

CAS classification

Solved?

Verified?

time (sec)

4001

\[ {}{y^{\prime }}^{2} = x^{2} y^{2} \]

separable

[_separable]

0.364

4002

\[ {}{y^{\prime }}^{2} = \left (y-1\right ) y^{2} \]

quadrature

[_quadrature]

0.499

4003

\[ {}{y^{\prime }}^{2} = \left (y-a \right ) \left (y-b \right ) \left (y-c \right ) \]

quadrature

[_quadrature]

1.505

4004

\[ {}{y^{\prime }}^{2} = a^{2} y^{n} \]

quadrature

[_quadrature]

0.709

4005

\[ {}{y^{\prime }}^{2} = a^{2} \left (1-\ln \left (y\right )^{2}\right ) y^{2} \]

quadrature

[_quadrature]

1.108

4006

\[ {}{y^{\prime }}^{2}+f \left (x \right ) \left (y-a \right ) \left (y-b \right ) = 0 \]

first_order_nonlinear_p_but_separable

[[_1st_order, ‘_with_symmetry_[F(x),G(x)*y+H(x)]‘]]

1.375

4007

\[ {}{y^{\prime }}^{2}+f \left (x \right ) \left (y-a \right )^{2} \left (y-b \right ) = 0 \]

first_order_nonlinear_p_but_separable

[[_1st_order, ‘_with_symmetry_[F(x),G(x)*y+H(x)]‘]]

0.869

4008

\[ {}{y^{\prime }}^{2}+f \left (x \right ) \left (y-a \right ) \left (y-b \right ) \left (y-c \right ) = 0 \]

first_order_nonlinear_p_but_separable

[[_1st_order, ‘_with_symmetry_[F(x),G(x)*y+H(x)]‘]]

1.198

4009

\[ {}{y^{\prime }}^{2}+f \left (x \right ) \left (y-a \right )^{2} \left (y-b \right ) \left (y-c \right ) = 0 \]

first_order_nonlinear_p_but_separable

[[_1st_order, ‘_with_symmetry_[F(x),G(x)*y+H(x)]‘]]

4.577

4010

\[ {}{y^{\prime }}^{2} = f \left (x \right )^{2} \left (y-a \right ) \left (y-b \right ) \left (y-c \right )^{2} \]

first_order_nonlinear_p_but_separable

[_separable]

5.11

4011

\[ {}{y^{\prime }}^{2} = f \left (x \right )^{2} \left (y-u \left (x \right )\right )^{2} \left (y-a \right ) \left (y-b \right ) \]

unknown

[‘y=_G(x,y’)‘]

N/A

2.323

4012

\[ {}{y^{\prime }}^{2}+2 y^{\prime }+x = 0 \]

quadrature

[_quadrature]

0.255

4013

\[ {}{y^{\prime }}^{2}-2 y^{\prime }+a \left (x -y\right ) = 0 \]

dAlembert

[[_homogeneous, ‘class C‘], _dAlembert]

0.232

4014

\[ {}{y^{\prime }}^{2}-2 y^{\prime }-y^{2} = 0 \]

quadrature

[_quadrature]

0.415

4015

\[ {}{y^{\prime }}^{2}-5 y^{\prime }+6 = 0 \]

quadrature

[_quadrature]

0.228

4016

\[ {}{y^{\prime }}^{2}-7 y^{\prime }+12 = 0 \]

quadrature

[_quadrature]

0.191

4017

\[ {}{y^{\prime }}^{2}+a y^{\prime }+b = 0 \]

quadrature

[_quadrature]

0.222

4018

\[ {}{y^{\prime }}^{2}+a y^{\prime }+b x = 0 \]

quadrature

[_quadrature]

0.295

4019

\[ {}{y^{\prime }}^{2}+a y^{\prime }+b y = 0 \]

quadrature

[_quadrature]

0.654

4020

\[ {}{y^{\prime }}^{2}+x y^{\prime }+1 = 0 \]

quadrature

[_quadrature]

0.368

4021

\[ {}{y^{\prime }}^{2}+x y^{\prime }-y = 0 \]

clairaut

[[_1st_order, _with_linear_symmetries], _Clairaut]

0.206

4022

\[ {}{y^{\prime }}^{2}-x y^{\prime }+y = 0 \]

clairaut

[[_1st_order, _with_linear_symmetries], _Clairaut]

0.213

4023

\[ {}{y^{\prime }}^{2}-x y^{\prime }-y = 0 \]

dAlembert

[[_1st_order, _with_linear_symmetries], _dAlembert]

0.34

4024

\[ {}{y^{\prime }}^{2}+x y^{\prime }+x -y = 0 \]

dAlembert

[[_1st_order, _with_linear_symmetries], _dAlembert]

0.307

4025

\[ {}{y^{\prime }}^{2}+\left (1-x \right ) y^{\prime }+y = 0 \]

clairaut

[[_1st_order, _with_linear_symmetries], _Clairaut]

0.199

4026

\[ {}{y^{\prime }}^{2}-\left (1+x \right ) y^{\prime }+y = 0 \]

clairaut

[[_1st_order, _with_linear_symmetries], _Clairaut]

0.222

4027

\[ {}{y^{\prime }}^{2}-\left (2-x \right ) y^{\prime }+1-y = 0 \]

clairaut

[[_1st_order, _with_linear_symmetries], _Clairaut]

0.239

4028

\[ {}{y^{\prime }}^{2}+\left (x +a \right ) y^{\prime }-y = 0 \]

clairaut

[[_1st_order, _with_linear_symmetries], _Clairaut]

0.212

4029

\[ {}{y^{\prime }}^{2}-2 x y^{\prime }+1 = 0 \]

quadrature

[_quadrature]

0.351

4030

\[ {}{y^{\prime }}^{2}+2 x y^{\prime }-3 x^{2} = 0 \]

quadrature

[_quadrature]

0.238

4031

\[ {}{y^{\prime }}^{2}+2 x y^{\prime }-y = 0 \]

dAlembert

[[_1st_order, _with_linear_symmetries], _dAlembert]

0.315

4032

\[ {}{y^{\prime }}^{2}+2 x y^{\prime }-y = 0 \]

dAlembert

[[_1st_order, _with_linear_symmetries], _dAlembert]

0.279

4033

\[ {}{y^{\prime }}^{2}-2 x y^{\prime }+2 y = 0 \]

clairaut

[[_1st_order, _with_linear_symmetries], _Clairaut]

0.225

4034

\[ {}{y^{\prime }}^{2}-\left (2 x +1\right ) y^{\prime }-x \left (1-x \right ) = 0 \]

quadrature

[_quadrature]

0.326

4035

\[ {}{y^{\prime }}^{2}+2 \left (1-x \right ) y^{\prime }-2 x +2 y = 0 \]

dAlembert

[[_1st_order, _with_linear_symmetries], _dAlembert]

0.299

4036

\[ {}{y^{\prime }}^{2}+3 x y^{\prime }-y = 0 \]

dAlembert

[[_1st_order, _with_linear_symmetries], _dAlembert]

0.36

4037

\[ {}{y^{\prime }}^{2}-4 \left (1+x \right ) y^{\prime }+4 y = 0 \]

clairaut

[[_1st_order, _with_linear_symmetries], _Clairaut]

0.201

4038

\[ {}{y^{\prime }}^{2}+a x y^{\prime } = b c \,x^{2} \]

quadrature

[_quadrature]

0.256

4039

\[ {}{y^{\prime }}^{2}-a x y^{\prime }+a y = 0 \]

clairaut

[[_1st_order, _with_linear_symmetries], _Clairaut]

0.234

4040

\[ {}{y^{\prime }}^{2}+a x y^{\prime }+b \,x^{2}+c y = 0 \]

first_order_ode_lie_symmetry_calculated

[[_homogeneous, ‘class G‘]]

4.085

4041

\[ {}{y^{\prime }}^{2}+\left (b x +a \right ) y^{\prime }+c = b y \]

clairaut

[[_1st_order, _with_linear_symmetries], _Clairaut]

0.229

4042

\[ {}{y^{\prime }}^{2}-2 x^{2} y^{\prime }+2 x y^{\prime } = 0 \]

quadrature

[_quadrature]

0.228

4043

\[ {}{y^{\prime }}^{2}+a \,x^{3} y^{\prime }-2 a \,x^{2} y = 0 \]

first_order_ode_lie_symmetry_calculated

[[_1st_order, _with_linear_symmetries]]

9.748

4044

\[ {}{y^{\prime }}^{2}-2 a \,x^{3} y^{\prime }+4 a \,x^{2} y = 0 \]

first_order_ode_lie_symmetry_calculated

[[_1st_order, _with_linear_symmetries]]

5.714

4045

\[ {}{y^{\prime }}^{2}+4 x^{5} y^{\prime }-12 y x^{4} = 0 \]

first_order_ode_lie_symmetry_calculated

[[_1st_order, _with_linear_symmetries]]

3.308

4046

\[ {}{y^{\prime }}^{2}-2 y^{\prime } \cosh \left (x \right )+1 = 0 \]

quadrature

[_quadrature]

0.265

4047

\[ {}{y^{\prime }}^{2}+y y^{\prime } = x \left (x +y\right ) \]

linear, quadrature

[_quadrature]

0.347

4048

\[ {}{y^{\prime }}^{2}-y y^{\prime }+{\mathrm e}^{x} = 0 \]

first_order_ode_lie_symmetry_calculated

[[_1st_order, _with_linear_symmetries]]

3.498

4049

\[ {}{y^{\prime }}^{2}+\left (x +y\right ) y^{\prime }+x y = 0 \]

quadrature

[_quadrature]

0.279

4050

\[ {}{y^{\prime }}^{2}-2 y y^{\prime }-2 x = 0 \]

dAlembert

[_dAlembert]

0.417

4051

\[ {}{y^{\prime }}^{2}+\left (2 y+1\right ) y^{\prime }+y \left (y-1\right ) = 0 \]

quadrature

[_quadrature]

142.175

4052

\[ {}{y^{\prime }}^{2}-2 \left (x -y\right ) y^{\prime }-4 x y = 0 \]

quadrature

[_quadrature]

0.291

4053

\[ {}{y^{\prime }}^{2}-\left (1+4 y\right ) y^{\prime }+\left (1+4 y\right ) y = 0 \]

quadrature

[_quadrature]

1.342

4054

\[ {}{y^{\prime }}^{2}-2 \left (-3 y+1\right ) y^{\prime }-\left (4-9 y\right ) y = 0 \]

quadrature

[_quadrature]

1.604

4055

\[ {}{y^{\prime }}^{2}+\left (a +6 y\right ) y^{\prime }+y \left (3 a +b +9 y\right ) = 0 \]

quadrature

[_quadrature]

1.172

4056

\[ {}{y^{\prime }}^{2}+a y y^{\prime }-x a = 0 \]

dAlembert

[_dAlembert]

0.776

4057

\[ {}{y^{\prime }}^{2}-a y y^{\prime }-x a = 0 \]

dAlembert

[_dAlembert]

0.467

4058

\[ {}{y^{\prime }}^{2}+\left (x a +b y\right ) y^{\prime }+a b x y = 0 \]

quadrature

[_quadrature]

0.336

4059

\[ {}{y^{\prime }}^{2}-x y y^{\prime }+y^{2} \ln \left (a y\right ) = 0 \]

first_order_ode_lie_symmetry_calculated

[[_1st_order, ‘_with_symmetry_[F(x),G(y)]‘]]

4.219

4060

\[ {}{y^{\prime }}^{2}-\left (2 x y+1\right ) y^{\prime }+2 x y = 0 \]

quadrature, separable

[_quadrature]

0.297

4061

\[ {}{y^{\prime }}^{2}-\left (4+y^{2}\right ) y^{\prime }+4+y^{2} = 0 \]

quadrature

[_quadrature]

0.833

4062

\[ {}{y^{\prime }}^{2}-\left (x -y\right ) y y^{\prime }-x y^{3} = 0 \]

quadrature, separable

[_separable]

0.333

4063

\[ {}{y^{\prime }}^{2}+x y^{2} y^{\prime }+y^{3} = 0 \]

first_order_ode_lie_symmetry_calculated

[[_homogeneous, ‘class G‘]]

75.362

4064

\[ {}{y^{\prime }}^{2}-2 x^{3} y^{2} y^{\prime }-4 x^{2} y^{3} = 0 \]

first_order_ode_lie_symmetry_calculated

[[_1st_order, _with_linear_symmetries]]

18.745

4065

\[ {}{y^{\prime }}^{2}-x y \left (x^{2}+y^{2}\right ) y^{\prime }+x^{4} y^{4} = 0 \]

separable

[_separable]

0.554

4066

\[ {}{y^{\prime }}^{2}+2 x y^{3} y^{\prime }+y^{4} = 0 \]

first_order_ode_lie_symmetry_calculated

[[_homogeneous, ‘class G‘]]

4.079

4067

\[ {}{y^{\prime }}^{2}+2 y y^{\prime } \cot \left (x \right )-y^{2} = 0 \]

separable

[_separable]

4.494

4068

\[ {}{y^{\prime }}^{2}-3 x y^{\frac {2}{3}} y^{\prime }+9 y^{\frac {5}{3}} = 0 \]

first_order_ode_lie_symmetry_calculated

[[_1st_order, _with_linear_symmetries]]

6.318

4069

\[ {}{y^{\prime }}^{2} = {\mathrm e}^{4 x -2 y} \left (y^{\prime }-1\right ) \]

dAlembert

[[_homogeneous, ‘class C‘], _dAlembert]

0.48

4070

\[ {}2 {y^{\prime }}^{2}+x y^{\prime }-2 y = 0 \]

dAlembert

[[_1st_order, _with_linear_symmetries], _dAlembert]

0.306

4071

\[ {}2 {y^{\prime }}^{2}-\left (1-x \right ) y^{\prime }-y = 0 \]

clairaut

[[_1st_order, _with_linear_symmetries], _Clairaut]

0.204

4072

\[ {}2 {y^{\prime }}^{2}-2 x^{2} y^{\prime }+3 x y = 0 \]

first_order_ode_lie_symmetry_calculated

[[_homogeneous, ‘class G‘]]

7.216

4073

\[ {}2 {y^{\prime }}^{2}+2 \left (6 y-1\right ) y^{\prime }+3 y \left (6 y-1\right ) = 0 \]

quadrature

[_quadrature]

0.972

4074

\[ {}3 {y^{\prime }}^{2}-2 x y^{\prime }+y = 0 \]

dAlembert

[[_1st_order, _with_linear_symmetries], _dAlembert]

0.305

4075

\[ {}3 {y^{\prime }}^{2}+4 x y^{\prime }+x^{2}-y = 0 \]

first_order_ode_lie_symmetry_calculated

[[_homogeneous, ‘class G‘]]

1.894

4076

\[ {}4 {y^{\prime }}^{2} = 9 x \]

quadrature

[_quadrature]

0.227

4077

\[ {}4 {y^{\prime }}^{2}+2 x \,{\mathrm e}^{-2 y} y^{\prime }-{\mathrm e}^{-2 y} = 0 \]

first_order_ode_lie_symmetry_calculated

[[_1st_order, _with_linear_symmetries]]

11.534

4078

\[ {}4 {y^{\prime }}^{2}+2 \,{\mathrm e}^{2 x -2 y} y^{\prime }-{\mathrm e}^{2 x -2 y} = 0 \]

dAlembert

[[_homogeneous, ‘class C‘], _dAlembert]

0.481

4079

\[ {}5 {y^{\prime }}^{2}+3 x y^{\prime }-y = 0 \]

dAlembert

[[_1st_order, _with_linear_symmetries], _dAlembert]

0.383

4080

\[ {}5 {y^{\prime }}^{2}+6 x y^{\prime }-2 y = 0 \]

dAlembert

[[_1st_order, _with_linear_symmetries], _dAlembert]

0.349

4081

\[ {}9 {y^{\prime }}^{2}+3 x y^{4} y^{\prime }+y^{5} = 0 \]

first_order_ode_lie_symmetry_calculated

[[_1st_order, _with_linear_symmetries]]

82.548

4082

\[ {}x {y^{\prime }}^{2} = a \]

quadrature

[_quadrature]

0.234

4083

\[ {}x {y^{\prime }}^{2} = -x^{2}+a \]

quadrature

[_quadrature]

0.574

4084

\[ {}x {y^{\prime }}^{2} = y \]

dAlembert, first_order_nonlinear_p_but_separable

[[_homogeneous, ‘class A‘], _rational, _dAlembert]

0.632

4085

\[ {}x {y^{\prime }}^{2}+x -2 y = 0 \]

dAlembert

[[_homogeneous, ‘class A‘], _rational, _dAlembert]

0.435

4086

\[ {}x {y^{\prime }}^{2}+y^{\prime } = y \]

dAlembert

[_rational, _dAlembert]

0.362

4087

\[ {}x {y^{\prime }}^{2}+2 y^{\prime }-y = 0 \]

dAlembert

[_rational, _dAlembert]

0.366

4088

\[ {}x {y^{\prime }}^{2}-2 y^{\prime }-y = 0 \]

dAlembert

[_rational, _dAlembert]

0.329

4089

\[ {}x {y^{\prime }}^{2}+4 y^{\prime }-2 y = 0 \]

dAlembert

[_rational, _dAlembert]

0.349

4090

\[ {}x {y^{\prime }}^{2}+x y^{\prime }-y = 0 \]

dAlembert

[[_homogeneous, ‘class A‘], _rational, _dAlembert]

0.375

4091

\[ {}x {y^{\prime }}^{2}-\left (x^{2}+1\right ) y^{\prime }+x = 0 \]

quadrature

[_quadrature]

0.241

4092

\[ {}x {y^{\prime }}^{2}+y y^{\prime }+a = 0 \]

dAlembert

[[_homogeneous, ‘class G‘], _dAlembert]

0.438

4093

\[ {}x {y^{\prime }}^{2}-y y^{\prime }+a = 0 \]

clairaut

[[_homogeneous, ‘class G‘], _rational, _Clairaut]

0.263

4094

\[ {}x {y^{\prime }}^{2}-y y^{\prime }+x a = 0 \]

dAlembert

[[_homogeneous, ‘class A‘], _rational, _dAlembert]

0.434

4095

\[ {}x {y^{\prime }}^{2}+y y^{\prime }+x^{3} = 0 \]

first_order_ode_lie_symmetry_calculated

[[_homogeneous, ‘class G‘]]

8.079

4096

\[ {}x {y^{\prime }}^{2}-y y^{\prime }+a y = 0 \]

dAlembert

[[_homogeneous, ‘class A‘], _rational, _dAlembert]

0.448

4097

\[ {}x {y^{\prime }}^{2}+y y^{\prime }-y^{4} = 0 \]

first_order_ode_lie_symmetry_calculated

[[_homogeneous, ‘class G‘]]

2.631

4098

\[ {}x {y^{\prime }}^{2}+\left (-y+a \right ) y^{\prime }+b = 0 \]

clairaut

[[_1st_order, _with_linear_symmetries], _rational, _Clairaut]

0.294

4099

\[ {}x {y^{\prime }}^{2}+\left (x -y\right ) y^{\prime }+1-y = 0 \]

clairaut

[[_1st_order, _with_linear_symmetries], _rational, _dAlembert]

0.258

4100

\[ {}x {y^{\prime }}^{2}+\left (a +x -y\right ) y^{\prime }-y = 0 \]

clairaut

[[_1st_order, _with_linear_symmetries], _rational, _dAlembert]

0.279