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2 values
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402
Densities
densities_0
https://docs.scipy.org/doc/scipy/reference/generated/scipy.stats.anglit.html#scipy.stats.anglit
float
cos(2*x_0)
anglit density
Mathematics
[[-0.7853981633974483, 0.7853981633974483]]
Densities
densities_1
https://docs.scipy.org/doc/scipy/reference/generated/scipy.stats.arcsine.html#scipy.stats.arcsine
float
1/(pi*sqrt(x_0*(1 - x_0)))
arcsine density
Mathematics
[[0.001, 0.999]]
Densities
densities_2
c = 1, https://docs.scipy.org/doc/scipy/reference/generated/scipy.stats.genlogistic.html#scipy.stats.genlogistic
float
exp(-x_0)/(1+exp(-x_0))^2
logistic density
Mathematics
[[-2, 2]]
Densities
densities_3
c = 2, https://docs.scipy.org/doc/scipy/reference/generated/scipy.stats.genpareto.html#scipy.stats.genpareto
float
(1 + 2*x_0)^(-3/2)
generalized pareto density
Mathematics
[[0, 2]]
Densities
densities_4
a,b,c = 1, https://docs.scipy.org/doc/scipy/reference/generated/scipy.stats.genexpon.html#scipy.stats.genexpon
float
(1 + 2*(1 - exp(-2*x_0)))*exp(-3*x_0 + 1 - exp(-2*x_0))
generalized exponential density
Mathematics
[[0, 2]]
Densities
densities_5
c = -1, https://docs.scipy.org/doc/scipy/reference/generated/scipy.stats.genextreme.html#scipy.stats.genextreme
float
exp(-(1 + x_0)^(-1))*(1 + x_0)^(-2)
generalized extreme value density
Mathematics
[[-0.5, 2]]
Densities
densities_6
https://docs.scipy.org/doc/scipy/reference/generated/scipy.stats.gibrat.html#scipy.stats.gibrat
float
1/(x_0*sqrt(2*pi))*exp(-0.5*(log(x_0)^2))
gibrat density
Mathematics
[[3.4452751762614753e-10, 2]]
Densities
densities_7
c = 1, https://docs.scipy.org/doc/scipy/reference/generated/scipy.stats.gompertz.html#scipy.stats.gompertz
float
exp(x_0)*exp(1 - exp(x_0))
gompertz density
Mathematics
[[0, 2]]
Densities
densities_8
https://docs.scipy.org/doc/scipy/reference/generated/scipy.stats.gumbel_r.html#scipy.stats.gumbel_r
float
exp(-(x_0 + exp(-x_0)))
right-skewed Gumbel density
Mathematics
[[-1.5, 2]]
Densities
densities_9
https://docs.scipy.org/doc/scipy/reference/generated/scipy.stats.halfcauchy.html#scipy.stats.halfcauchy
float
2/(pi*(1 + x_0^2))
Half-Cauchy density
Mathematics
[[0, 2]]
Densities
densities_10
https://docs.scipy.org/doc/scipy/reference/generated/scipy.stats.halflogistic.html#scipy.stats.halflogistic
float
(2*exp(-x_0))/((1 + exp(-x_0))^2)
Half-Logistic density
Mathematics
[[0, 2]]
Densities
densities_11
https://docs.scipy.org/doc/scipy/reference/generated/scipy.stats.halfnorm.html#scipy.stats.halfnorm
float
sqrt(2/pi)*exp(-x_0^2/2)
Half-Normal density
Mathematics
[[0, 2]]
Densities
densities_12
c = 1.0, https://docs.scipy.org/doc/scipy/reference/generated/scipy.stats.bradford.html#scipy.stats.bradford
float
1/(log(2)*(1 + x_0))
bradford density
Mathematics
[[0, 1]]
Densities
densities_13
mu = 1, https://docs.scipy.org/doc/scipy/reference/generated/scipy.stats.invgauss.html#scipy.stats.invgauss
float
1/sqrt((2*pi*x_0^3))*exp(-((x_0-1)^2)/(2*x_0))
Inverse Gaussian density
Mathematics
[[0.2, 2]]
Densities
densities_14
c = 1, https://docs.scipy.org/doc/scipy/reference/generated/scipy.stats.invweibull.html#scipy.stats.invweibull
float
exp(-1/x_0)/(x_0^2)
Inverse Weibull density
Mathematics
[[0.2, 2]]
Densities
densities_15
c = 1, https://docs.scipy.org/doc/scipy/reference/generated/scipy.stats.lomax.html#scipy.stats.lomax
float
1/((1 +x_0)^2)
Lomax density
Mathematics
[[0.0, 2]]
Densities
densities_16
https://docs.scipy.org/doc/scipy/reference/generated/scipy.stats.maxwell.html#scipy.stats.maxwell
float
sqrt(2/pi)*x_0^2*exp(-x_0^2/2)
Maxwell density
Physics
[[0.0, 2]]
Densities
densities_17
https://docs.scipy.org/doc/scipy/reference/generated/scipy.stats.moyal.html#scipy.stats.moyal
float
(exp(-(x_0+exp(-x_0))/2))/(sqrt(2*pi))
Moyal density
Physics
[[0.0, 2]]
Densities
densities_18
https://docs.scipy.org/doc/scipy/reference/generated/scipy.stats.norm.html#scipy.stats.norm
float
(exp(-x_0^2/2))/(sqrt(2*pi))
standard normal density
Mathematics
[[-2, 2]]
Densities
densities_19
b = 2, https://docs.scipy.org/doc/scipy/reference/generated/scipy.stats.pareto.html#scipy.stats.pareto
float
2/(x_0^3)
standard normal density
Mathematics
[[1, 2]]
Densities
densities_20
a = 0.5, https://docs.scipy.org/doc/scipy/reference/generated/scipy.stats.powerlaw.html#scipy.stats.powerlaw
float
1/(2*sqrt(x_0))
power law density
Mathematics
[[5.213836029582808e-10, 1]]
Densities
densities_21
https://docs.scipy.org/doc/scipy/reference/generated/scipy.stats.rayleigh.html#scipy.stats.rayleigh
float
x_0*exp(-x_0^2/2)
rayleigh density
Mathematics
[[0, 2]]
Densities
densities_22
https://docs.scipy.org/doc/scipy/reference/generated/scipy.stats.semicircular.html#scipy.stats.semicircular
float
2/pi*sqrt(1 - x_0^2)
semicircular density
Mathematics
[[-1, 1]]
Densities
densities_23
c = 2.0, d = 1.0, https://docs.scipy.org/doc/scipy/reference/generated/scipy.stats.burr.html#scipy.stats.burr
float
2*(x_0^(-3))/((1+x_0^(-2))^2)
bradford density
Mathematics
[[2.235761575875017e-10, 1.8350870916695006]]
Densities
densities_24
lambda = 0.1, N = 100, https://docs.scipy.org/doc/scipy/reference/generated/scipy.stats.boltzmann.html#scipy.stats.boltzmann
int
0.09516690253473127*exp(-0.1*x_0)
Boltzmann density
Mathematics
[[0, 50]]
Densities
densities_25
p = 0.2, https://docs.scipy.org/doc/scipy/reference/generated/scipy.stats.geom.html#scipy.stats.geom
int
0.8^(x_0-1)*0.2
Geometric density
Mathematics
[[1, 20]]
Densities
densities_26
p = 0.9, https://docs.scipy.org/doc/scipy/reference/generated/scipy.stats.logser.html#scipy.stats.logser
int
-(0.9^x_0)/(x_0*log(0.1))
Log Series density
Mathematics
[[1, 20]]
Densities
densities_27
https://docs.scipy.org/doc/scipy/reference/generated/scipy.stats.cauchy.html#scipy.stats.cauchy
float
1/(pi*(1 + x_0^2))
cauchy density
Mathematics
[[-1, 1]]
Densities
densities_28
https://docs.scipy.org/doc/scipy/reference/generated/scipy.stats.cosine.html#scipy.stats.cosine
float
(1 + cos(x_0))/(2*pi)
cosine density
Mathematics
[[-3.141592653589793, 3.141592653589793]]
Densities
densities_29
https://docs.scipy.org/doc/scipy/reference/generated/scipy.stats.expon.html#scipy.stats.expon
float
exp(-x_0)
exponential density
Mathematics
[[0, 2]]
Densities
densities_30
a = 2, c = 1, https://docs.scipy.org/doc/scipy/reference/generated/scipy.stats.exponweib.html#scipy.stats.exponweib
float
2*(1 - exp(-x_0))*exp(-x_0)
exponential weibull density
Mathematics
[[0, 1]]
Densities
densities_31
c = 1, https://docs.scipy.org/doc/scipy/reference/generated/scipy.stats.fatiguelife.html#scipy.stats.fatiguelife
float
(x_0+1)/(2*sqrt(2*pi*x_0^3))*exp(-(x_0-1)^2/(2*x_0))
fatigue life density
Engineering
[[8.485969149596428e-10, 0.29538227738363126]]
Densities
densities_32
c = 1, https://docs.scipy.org/doc/scipy/reference/generated/scipy.stats.foldcauchy.html#scipy.stats.foldcauchy
float
1/(pi*(1 + (x_0-1)^2)) + 1/(pi*(1 + (x_0+1)^2))
folded cauchy density
Mathematics
[[0, 2]]
Eponymous
eponymous_0
The P-wave speed is determined by the elastic properties of the medium, including the bulk modulus, shear modulus, and density.
float
sqrt((x_0 + 4*x_1/3)/x_2)
Adams–Williamson equation
Physics
[[0, 95.05825033339732], [63.433589833745664, 63.43558983374566], [4.1390180172129476e-10, 10]]
Eponymous
eponymous_1
The S-wave speed is determined by the shear modulus and density of the medium.
float
sqrt(x_0/x_1)
Adams–Williamson equation
Physics
[[9.239684573003615e-10, 100], [1.3500667250809784e-10, 10]]
Eponymous
eponymous_2
Linear dispersion relation of the BBM equation.
float
x_0/(x_0**2 + 1)
Benjamin–Bona–Mahony equation
Physics
[[-100, 100]]
Eponymous
eponymous_3
The Hazen–Williams equation for full pipe flows relates the slope of the energy line to the flow rate, pipe roughness coefficient, and pipe diameter.
float
19707*x_1**(463/250)/(2500*((x_2**(463/250)*x_3**(3044/625)))*(x_0**(463/250)))
Hazen–Williams equation
Engineering
[[0.001, 0.04], [0.001, 100], [0.001, 1], [0.001, 10]]
Eponymous
eponymous_4
The Henderson–Hasselbalch equation relates the pH of a solution to the acid dissociation constant and the ratio of the concentrations of the base and acid.
float
x_0 + log(x_1/x_2, 10)
Henderson–Hasselbalch equation
Chemistry
[[0, 14], [1e-06, 1], [1e-06, 1]]
Eponymous
eponymous_5
The Hill equation for response in terms of the total amount of receptor and ligand-bound receptor concentrations.
float
x_0/x_1
Hill equation (biochemistry)
Biology
[[0, 100], [9.444676152270404e-10, 100]]
Eponymous
eponymous_6
The Michelson–Rayleigh line equation defines the relationship between pressure and density across a shock wave.
float
(-x_0 + x_1)/(1/x_3 - 1*1/x_2)
Hugoniot equation
Physics
[[0, 10], [0, 10], [1.8407984796296806, 2.785561249328673], [1.8387984794051082, 1.840798479405108]]
Eponymous
eponymous_7
The Hugoniot equation expresses the conservation of energy across a shock wave.
float
1*(1/x_3 + 1/x_2)*(-x_0 + x_1)/2
Hugoniot equation
Physics
[[0, 10], [0, 10], [4.237408202101278e-10, 3.6106334461630896], [1.5648993212380446e-10, 10]]
Eponymous
eponymous_8
The simplified Hugoniot equation relates pressure and density changes across a shock wave, incorporating heat release.
float
x_4*(-x_0/x_2 + x_1/x_3)/(x_4 - 1) - 1*1*(1/x_3 + 1/x_2)*(-x_0 + x_1)/2
Hugoniot equation
Physics
[[0, 10], [0, 10], [4.601741210308319e-10, 10], [6.921494488665303e-10, 8.145417595604535], [1.0000000001300038, 2]]
Eponymous
eponymous_9
The non-dimensional Rayleigh line equation simplifies the relationship between pressure and density across a shock wave.
float
(x_0 - 1)/(x_1 - 1)
Hugoniot equation
Physics
[[0, 10], [0, 10]]
Eponymous
eponymous_10
The Kapustinskii equation calculates the lattice energy for an ionic crystal.
float
x_0*(x_1*Abs(x_2)*Abs(x_3))*(-x_6/(x_4 + x_5) + 1)/(x_4 + x_5)
Kapustinskii equation
Chemistry
[[0, 10], [0, 10], [-10, 10], [-10, 10], [0.01, 10], [0.01, 10], [0, 10]]
Eponymous
eponymous_11
A simpler form of the Kapustinskii equation for estimating lattice energy.
float
x_0*(x_1*Abs(x_2)*Abs(x_3))/(x_4 + x_5)
Kapustinskii equation
Chemistry
[[0, 10], [0, 10], [-10, 10], [-10, 10], [0.01, 10], [0.01, 10]]
Eponymous
eponymous_12
The Born–Landé equation for calculating lattice energy in ionic crystals.
float
-x_0*x_1*x_2*x_3*x_4**2*(1 - 1*1/x_7)/(4*pi*x_5*x_6)
Kapustinskii equation
Chemistry
[[0, 10], [0, 10], [-10, 10], [-10, 10], [0.01, 10], [0.01, 10], [0.01, 10], [1, 10]]
Eponymous
eponymous_13
Linear dispersion relation of the KdV equation.
float
-x_0**3 + x_0
Benjamin–Bona–Mahony equation
Physics
[[-100, 100]]
Eponymous
eponymous_14
The Karplus equation describes the correlation between 3J-coupling constants and dihedral torsion angles in nuclear magnetic resonance spectroscopy.
float
x_0*cos(2*x_1) + x_2*cos(x_1) + x_3
Karplus equation
Chemistry
[[0, 360], [-10, 10], [-10, 10], [-10, 10]]
Eponymous
eponymous_15
The radial Kepler equation for objects with enough energy to escape relates time and distance from the center of attraction.
float
2*x_0**(3/2)/3
Kepler's equation
Physics
[[0, 10]]
Eponymous
eponymous_16
The Kozeny-Carman equation describes the pressure drop of a fluid flowing through a packed bed of solids.
float
(150*x_0)*x_4*(1 - x_3)**2/(((x_1**2*x_2**2))*(x_3**3))
Kozeny–Carman equation
Engineering
[[0.001, 10.0], [0.1, 1.0], [0.001, 0.1], [0.1, 0.6], [0.01, 1.0]]
Eponymous
eponymous_17
Darcy's law states that flow is proportional to the pressure gradient and inversely proportional to the fluid viscosity.
float
x_0*x_2/(x_1*x_3)
Kozeny–Carman equation
Engineering
[[0.001, 10.0], [0.001, 10.0], [0.01, 100.0], [0.1, 10.0]]
Eponymous
eponymous_18
The Kozeny equation for absolute permeability describes the permeability of a packed bed of solids.
float
x_0**2*(x_1**3*x_2**2)/((180*(1 - x_1)**2))
Kozeny–Carman equation
Engineering
[[0.1, 1.0], [0.1, 0.6], [0.001, 0.1]]
Eponymous
eponymous_19
The polytropic equation of state relates pressure and density in a polytropic fluid.
float
x_0**(1 + 1/x_2)*x_1
Lane–Emden equation
Physics
[[3.6948178544493615e-10, 0.04443330038779237], [0.34, 0.4], [-0.54, -0.48]]
Eponymous
eponymous_20
The density profile of a polytropic fluid is given by the polytropic index.
float
x_0**x_2*x_1
Lane–Emden equation
Physics
[[0, 10], [0, 10], [0, 5]]
Eponymous
eponymous_21
The solution to the Lane–Emden equation for a polytropic index of 0.
float
-1*1*x_0**2/6 + 1
Lane–Emden equation
Physics
[[0, 10]]
Eponymous
eponymous_22
Poisson's equation is a generalization of Laplace's equation with a specified right-hand side function.
float
x_0
Laplace's equation
Physics
[[-10, 10]]
Eponymous
eponymous_23
The ideal gas law describes the relationship between pressure, volume, number of moles, and temperature of an ideal gas.
float
(x_0*x_1)/x_2
List of equations
Physics
[[1000, 110000], [0.001, 100], [0.001, 100]]
Eponymous
eponymous_24
Transformed equation from the example Bernoulli equation using substitution u = 1/y.
float
x_0**2
Bernoulli differential equation
Mathematics
[[0, 10]]
Eponymous
eponymous_25
Newton's second law of motion states that the force acting on an object is equal to its mass times its acceleration.
float
x_0*x_1
List of equations
Physics
[[0.1, 1000], [0.01, 100]]
Eponymous
eponymous_26
Ohm's law describes the relationship between voltage, current, and resistance in an electrical circuit.
float
x_0*x_1
List of equations
Physics
[[0.01, 1000], [0.001, 100]]
Eponymous
eponymous_27
The equation of a straight line in slope-intercept form describes the relationship between the y-coordinate and the x-coordinate.
float
x_0*x_1 + x_2
List of equations
Mathematics
[[-100, 100], [-100, 100], [-100, 100]]
Eponymous
eponymous_28
The Arrhenius equation describes the temperature dependence of reaction rates.
float
x_0*exp(-x_1/x_2)
List of equations
Chemistry
[[0.01, 100], [1000, 100000], [200, 1000]]
Eponymous
eponymous_29
The Michaelis-Menten equation describes the rate of enzymatic reactions.
float
(x_0*x_1)/(x_1 + x_2)
List of equations
Biology
[[0.01, 100], [0.001, 100], [0.001, 100]]
Eponymous
eponymous_30
The Lorentz force law describes the electromagnetic force on a charge q due to electric field E and magnetic field B.
float
x_0*(x_1 + x_2*x_3)
Lorentz equation
Physics
[[-1e-06, 1e-06], [-1000000.0, 1000000.0], [-1000000.0, 1000000.0], [-1000000.0, 1000000.0]]
Eponymous
eponymous_31
The Lorentz force equation for a continuous charge distribution in motion describes the force density due to electric and magnetic fields.
float
x_0*(x_1 + x_2*x_3)
Lorentz equation
Physics
[[-1e-06, 1e-06], [-1000000.0, 1000000.0], [-1000000.0, 1000000.0], [-1000000.0, 1000000.0]]
Eponymous
eponymous_32
The Lorentz–Lorenz equation relates the refractive index of a substance to its polarizability.
float
(4*pi)*x_0*x_1/3
Lorentz–Lorenz equation
Physics
[[1e+20, 1e+25], [1e-30, 1e-25]]
Eponymous
eponymous_33
The quadratic Lyapunov function for continuous-time systems.
float
x_0*x_1*(x_0)
Lyapunov equation
Mathematics
[[-10, 10], [-10, 10]]
Eponymous
eponymous_34
The quadratic Lyapunov function for discrete-time systems.
float
x_0*x_1*(x_0)
Lyapunov equation
Mathematics
[[-10, 10], [-10, 10]]
Eponymous
eponymous_35
Solution of the transformed equation using integrating factor M(x) = x^2.
float
x_0**4
Bernoulli differential equation
Mathematics
[[0, 10]]
Eponymous
eponymous_36
The Mark–Houwink equation relates intrinsic viscosity to molecular weight for polymers.
float
x_0*x_1**x_2
Mark–Houwink equation
Chemistry
[[0.01, 10], [1000, 1000000], [0.5, 2.0]]
Eponymous
eponymous_37
The Mason–Weaver sedimentation coefficient is defined as the ratio of buoyant mass to drag coefficient.
float
x_0/x_1
Mason–Weaver equation
Physics
[[1e-10, 1e-05], [1e-10, 1e-05]]
Eponymous
eponymous_38
The ratio of the sedimentation coefficient to the diffusion constant is given by the buoyant mass and temperature.
float
x_0/x_1
Mason–Weaver equation
Physics
[[1e-10, 1e-05], [1e-10, 1e-05]]
Eponymous
eponymous_39
The equilibrium concentration distribution in the Mason–Weaver equation.
float
x_0*exp(-x_1)
Mason–Weaver equation
Physics
[[1e-10, 1e-05], [1e-10, 1e-05]]
Eponymous
eponymous_40
The Morison equation describes the inline force on a body in oscillatory flow as the sum of an inertia force and a drag force.
float
x_0*x_1*x_2*x_3 + 1*x_0*x_4*x_5*x_6*Abs(x_6)/2
Morison equation
Engineering
[[0.1, 1000], [0.1, 10], [0.1, 10], [0.1, 100], [0.1, 10], [0.1, 100], [-10, 10]]
Eponymous
eponymous_41
The Morison equation for a moving body in an oscillatory flow includes additional terms for the body's velocity and acceleration.
float
x_0*x_1*x_2 + x_0*x_1*x_3*(x_2 - x_4) + 1*x_0*x_5*x_6*(x_7 - x_8)*Abs(x_7 - x_8)/2
Morison equation
Engineering
[[0.1, 1000], [0.1, 100], [-10, 10], [0.1, 10], [-10, 10], [0.1, 10], [0.1, 100], [-10, 10], [-10, 10]]
Eponymous
eponymous_42
The Nernst equation expressed in terms of base-10 logarithms for the cell potential as a function of standard cell potential, thermal voltage, number of electrons transferred, and activities of the reduced and oxidized forms.
float
x_0 - x_1*log(x_3/x_4, E)/x_2
Nernst equation
Chemistry
[[273.15, 373.15], [0.02, 0.03], [1, 10], [0.1, 10], [0.1, 10]]
Eponymous
eponymous_43
The Ornstein–Zernike equation relates the total correlation function to the direct correlation function in statistical mechanics.
float
x_0/(x_0*x_1 + 1)
Ornstein–Zernike equation
Physics
[[0, 10], [0, 10]]
Eponymous
eponymous_44
The total correlation function is defined in terms of the pair correlation function.
float
x_0 - 1
Ornstein–Zernike equation
Physics
[[0, 10]]
Eponymous
eponymous_45
The Landé g-factor in the Pauli equation for an electron in an isotropic constant magnetic field.
float
3/2 + (-x_0*(x_0 + 1) + 3/4)/((2*x_1*(x_1 + 1)))
Pauli equation
Physics
[[0, 10], [0.5, 10.5]]
Eponymous
eponymous_46
The third-order Birch–Murnaghan isothermal equation of state relates pressure to volume.
float
(3*x_0)*((x_1/x_2)**(7/3) - (x_1/x_2)**(5/3))*(3*(x_3 - 4)*((x_1/x_2)**(2/3) - 1)/4 + 1)/2
Birch–Murnaghan equation of state
Physics
[[1, 100], [1, 100], [1, 100], [1, 100]]
Eponymous
eponymous_47
The modified Penman equation by Shuttleworth simplifies the calculation of evaporation using SI units.
float
(x_0*x_1 + x_2*(643/100)*(67*x_3/125 + 1)*x_4)/((x_5*(x_0 + x_2)))
Penman equation
Engineering
[[0, 1000], [0, 1000], [734.4649426197814, 734.4669426197813], [0, 1000], [0, 1000], [8.997176337288693e-10, 745.7438253960154]]
Eponymous
eponymous_48
The saturated vapor pressure of air is approximated by an exponential function of temperature.
float
exp(2107/100 - 1*5336/x_0)
Penman equation
Engineering
[[200, 350]]
Eponymous
eponymous_49
The slope of the saturation vapor pressure curve is derived from the temperature and the saturated vapor pressure.
float
5336*exp(2107/100 - 1*5336/x_0)/(x_0**2)
Penman equation
Engineering
[[200, 350]]
Eponymous
eponymous_50
This equation describes the periods of elliptic curves in terms of the j-invariant.
float
x_0**3/(x_0**3 - 1*27*x_1**2)
Picard–Fuchs equation
Mathematics
[[-100, 100], [-100, 100]]
Eponymous
eponymous_51
This is the Weierstrass form of an elliptic curve.
float
4*x_0**3 - x_0*x_1 - x_2
Picard–Fuchs equation
Mathematics
[[-100, 100], [-100, 100], [-100, 100]]
Eponymous
eponymous_52
Poisson's equation relating the electric potential to the free charge density.
float
-x_0/x_1
Poisson's equation
Physics
[[0, 10], [1, 10]]
Eponymous
eponymous_53
The Prandtl–Glauert transformation scaling down dimensions and angle of attack by the Prandtl–Glauert factor.
float
x_0**2*x_1
Prandtl–Glauert equation
Engineering
[[-10, 10], [-10, 10]]
Eponymous
eponymous_54
The lift coefficient for a flat elliptical wing using Lifting-Line Theory.
float
(2*pi*x_0)/(x_1 + 2/x_2)
Prandtl–Glauert equation
Engineering
[[-10, 10], [-10, 10], [-10, 10]]
Eponymous
eponymous_55
The Prony equation calculates the head loss due to friction within a given run of pipe.
float
x_0*(x_2*x_3 + x_3**2*x_4)/x_1
Prony equation
Engineering
[[0.1, 100], [0.01, 10], [0.01, 5], [0.01, 10], [0.01, 10]]
Eponymous
eponymous_56
The Randles–Ševčík equation at 25 °C describes the peak current in a cyclic voltammetry experiment as a function of scan rate and other parameters.
float
(269/100)*10**5*x_0**(3/2)*x_1*x_2*sqrt(x_3*x_4)
Randles–Sevcik equation
Chemistry
[[1, 10], [1e-05, 0.001], [0.01, 1], [1e-06, 0.0001], [1e-06, 0.0001]]
Eponymous
eponymous_57
The finite strain parameter is defined in terms of volume.
float
1*((x_0/x_1)**(2/3) - 1)/2
Birch–Murnaghan equation of state
Physics
[[1, 100], [1, 100]]
Eponymous
eponymous_58
A general fit formula for the peak currents as a function of the scan rate in a cyclic voltammetry experiment.
float
x_0 + x_1*(x_2/(-3 + 1*E))**x_3
Randles–Sevcik equation
Chemistry
[[-1.77, 0.23], [-1.78, 0.22], [-2.59, -0.59], [0.42, 2.42]]
Eponymous
eponymous_59
The Hugoniot equation describes the conservation of energy across a shock wave.
float
1*(1/x_3 + 1/x_2)*(-x_0 + x_1)/2
Rankine–Hugoniot equation
Physics
[[0, 100], [0, 100], [0.1, 10], [0.1, 10]]
Eponymous
eponymous_60
The mass entering the bubble is given by the product of density, area, and velocity.
float
x_0*4*pi*x_1**2*x_2
Rayleigh–Plesset equation
Physics
[[900, 1100], [0.01, 1], [0.01, 1]]
Eponymous
eponymous_61
The van Deemter equation relates the height equivalent to a theoretical plate (HETP) to flow and kinetic parameters causing peak broadening in chromatography.
float
x_0 + x_1/x_2 + x_2*(x_3 + x_4)
Rodrigues equation
Chemistry
[[0, 1], [0, 1], [6.851221812098629e-10, 1], [0, 1], [0, 1]]
Eponymous
eponymous_62
The optimal velocity for minimizing HETP in chromatography.
float
sqrt(x_0/x_1)
Rodrigues equation
Chemistry
[[5.695283133988482e-10, 1], [3.772975265547984e-10, 1]]
Eponymous
eponymous_63
The plate height in chromatography is the ratio of column length to the number of theoretical plates.
float
x_0/x_1
Rodrigues equation
Chemistry
[[0, 1], [9.085288493748678e-10, 0.027076785042440002]]
Eponymous
eponymous_64
The plate count in chromatography can be estimated using the retention time and standard deviation.
float
(x_0/x_1)**2
Rodrigues equation
Chemistry
[[0, 1], [1.4354550881279238e-10, 1]]
Eponymous
eponymous_65
The plate count in chromatography can be estimated using the retention time and peak width at half height.
float
8*(x_0/x_1)**2*log(2, E)
Rodrigues equation
Chemistry
[[0, 1], [7.666192125554971e-10, 0.42393999176393415]]
Eponymous
eponymous_66
The plate count in chromatography can be estimated using the retention time and the width at the base of the peak.
float
16*(x_0/x_1)**2
Rodrigues equation
Chemistry
[[0, 1], [2.5780477752590514e-10, 1]]
End of preview. Expand in Data Studio

Equation Recovery Benchmark

This dataset contains the public regression tasks and evaluation metrics for the Equation Recovery Benchmark.

You find the different regression tasks inside train.csv. Evaluation code to score a symbolic regression algorithm is located inside src. An example is provided in src/quickstart.ipynb.

The dataset contains the following columns

  • Collection: dataset name
  • task ID: unique ID
  • description: some string giving a description of the expression
  • dtype: type of data, used for sampling (int or float)
  • expression: expression that represents the target function
  • name: sometimes the expressions have special names (e.g. gompertz density)
  • scientific field: area of science, where expression applies
  • support: list of intervals (a,b) for each independent variable. Within the hypercube of these intervals, the expression is valid.

The following licenses apply to the datasets:

  • Densities: BSD 3-Clause
  • Eponymous: CC-BY-SA 4.0
  • Feynman: MIT
  • Keijzer: BSD 3-Clause
  • Korns: BSD 3-Clause
  • Koza: BSD 3-Clause
  • Livermore: BSD 3-Clause
  • Nguyen: BSD 3-Clause
  • OEIS: CC-BY-SA 4.0
  • Pagie: BSD 3-Clause
  • SynEq: MIT
  • SRDS: MIT
  • Strogatz: GPL-3.0
  • Vladislavleva: BSD 3-Clause
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