1000	Polynomial
1010	Const
1011	y = aa
1020	Straight Line
1021	y = aa + bb*x
1030	Parabola
1031	y = aa + bb*x + cc*x^2
1040	Polynomial4
1041	y = aa + bb*x + cc*x^2 + dd*x^3
1050	Polynomial5
1051	y = aa + bb*x + cc*x^2 + dd*x^3 + gg*x^4
1060	ParabolaSqrt
1061	y = aa + bb*x^2 + cc*sqrt(x)
1070	PolynomialSqrt 3
1071	y = aa + bb*sqrt(x) + cc*x
1080	PolynomialSqrt 4
1081	y = aa + bb*sqrt(x) + cc*x + dd*x^1.5
1090	Polynomial with fixed point
1091	y = y0 + cc*(x-x0) + dd*(x-x0)^2 + gg*(x-x0)^3 + hh*(x-x0)^4, x0=aa, y0=bb
1100	Polynomial (X-X1)(X-X2)
1101	y = aa + bb*(x-cc)*(x-dd)
1110	Polynomial (X-X1)(X-X2)(X-X3)
1111	y = aa + bb*(x-cc)*(x-dd)*(x-gg)
1120	Polynomial (X-X1)(X-X2)(X-X3)(X-X4)
1121	y = aa + bb*(x-cc)*(x-dd)*(x-gg)*(x-hh)
1130	Polynomial (X-X1)(X-X2)(X-X3)(X-X4)(X-X5)
1131	y = aa + bb*(x-cc)*(x-dd)*(x-gg)*(x-hh)*(x-kk)
1510	Linear regression
1560	Fourier
2000	Exponential
2010	Exponential 1
2011	y = bb^x
2020	Exponential 2-1
2021	y = ab*exp(bb*x)
2030	Exponential 2-2
2031	y = ab*exp(-bb*x)
2040	Exponential 2-3
2041	y = exp(aa-bb*x)
2050	Exponential 2-4
2051	y = aa*bb^x
2060	Exponential3
2061	y = aa + bb*exp(-cc*x)
2070	Stirling
2071	y = aa + bb*(exp(cc*x)-1)/cc
2100	ExpDecay 4
2101	y = aa + bb*exp(-(x-dd)/cc)
2110	ExpDecay 5
2111	y = aa + bb*exp(-x/cc) + dd*exp(-x/gg)
2120	Exp2Decay 5
2121	y = aa*exp(-(x-dd)/cc) + bb*exp(-(x-dd)/gg)
2130	ExpDecay 7
2131	y = aa + bb*exp(-x/cc) + dd*exp(-x/gg) + hh*exp(-x/kk)
2200	ExpGrowth 3
2201	y = aa + bb*exp(x/cc)
2210	ExpGrowth 4
2211	y = aa + bb*exp((x-dd)/cc)
2220	Exp2Growth 5-1
2221	y = aa + bb*exp(x/cc) + dd*exp(x/gg)
2230	Exp2Growth 5-2
2231	y = aa*exp((x-dd)/cc) + b*exp((x-dd)/gg)
2240	ExpGrowth 7
2241	y = aa + bb*exp(x/cc) + dd*exp(x/gg) + hh*exp(x/kk)
2300	Modified Exponential 2
2301	y = aa*exp(bb/x)
2310	Modified Exponential 3
2311	y = aa*exp(bb/(x+cc))
2320	Exp and Linear
2321	y = aa + bb*x + cc*exp(-x/dd)
2330	Shah
2331	y = aa + bb*x + cc*dd^x
2340	Yeild-fertilizer
2341	y = aa + cc*dd^x
2350	Vapor Pressure Model
2351	y = exp(aa+bb/x+cc*ln(x))
2360	ExpGauss
2361	y = exp(aa+bb*x+cc*x^2)
3000	Logarithm
3010	Logarithm 1
3011	y = ln(x-aa)
3020	Logarithm 2-1
3021	y = b*ln(x-aa)
3030	Logarithm 2-2
3031	y = aa + bb*ln(x)
3040	Logarithm 3-1
3041	y = aa + bb*ln(x-cc)
3050	Logarithm 3-2
3051	y = aa - bb*ln(x+cc)
3060	Bradley
3061	y = aa*ln(-bb*ln(x))
3070	Logarithm Polynomial
3071	y = aa + bb*ln(1+cc*x+dd*x^2)
4000	Power
4010	Power Fit
4011	y = aa*x^bb
4020	Allometric
4021	y = aa+cc*x^bb
4030	Power Series
4031	y = aa+cc*x^bb+gg*x^dd
4040	Shifted Power 2
4041	y = aa*(1 + x)^bb
4050	Shifted Power 3
4051	y = aa*(x-cc)^bb
4060	Shifted Power 4
4061	y = aa*(x-cc)^bb + dd
4070	Gamma
4071	y = aa*(x/bb)^c*exp(aa/bb)
4080	Geometric
4081	y = aa*x^(bb*x)
4090	Modified Geometric
4091	y = aa*x^(bb/x)
4100	Root Fit
4101	y = aa^(1/x)
4110	Hoerl
4111	y = aa*(bb^x)*(x^cc)
4120	Freundlich
4121	y = aa*x^(bb*x^(-cc))
4130	Gunary
4131	y = x/(aa + bb*x + cc*sqrt(x))
4140	Langmuir
4141	y = (aa*bb*x^(1-cc))/(1 + bb*x^(1-cc))
4150	Pareto
4151	y = 1 - 1/x^aa
5000	Hyperbola
5010	Saturation Growth
5011	y = aa*x/(bb + x)
5020	Double Hyperbola
5021	y = aa*x/(bb + x) + c*x/(dd + x) + gg*x
5030	Generalized Hyperbola
5031	y = aa - bb/(1 + cc*x)^(1/dd)
5040	Bent Hyperbola
5041	y = aa+bb*x-sqrt((cc+bb*x)^2+dd^2)
5050	Heat-Capacity Model
5051	y = aa + bbx + cc/x^2
5060	Inverse
5061	y = aa+bb/x+cc/x^2
6000	Rational
6010	Rational 2
6011	y = aa / (bb + x)
6020	Rational 3
6021	y = aa / (bb + x) + cc
6030	Rational 4
6031	y = (aa + bb*x) / (1 + cc*x + dd*x^2)
6040	Rational 5
6041	y = (aa + bb*x + cc*x^2) / (1 + dd*x + gg*x^2)
6050	Rational 7
6051	y = (aa + bb*x + cc*x^2 + dd*x^3) / (1 + gg*x + hh*x^2 + kk*x^3)
6060	Nelder
6061	y = (x + aa) / (bb + cc*(x+aa) + dd*(x+aa)^2)
6070	BET
6071	y = x/(aa+bb*x-(aa+bb)*x*x)
7000	Sigmoidal
7010	Gompertz Model
7011	y = aa * exp (-exp(-bb*(x - cc)))
7020	Logistic Model
7021	y = aa / (1 + exp(-bb*(x - cc)))
7030	Richards Model
7031	y = aa / (1 + exp(-bb*(x - cc))^(1/dd)
7040	Boltzmann
7041	y = aa + (bb-aa) /(1+exp(-(x-cc)/dd))
7050	Weibull
7051	y = aa * (1 - exp( -(bb*(x-cc))^dd) )
7060	MMF Model
7061	y = (aa*bb + cc*x^dd)/(bb + x^dd)
7070	Hill
7071	y = aa*x^dd / (cc^dd+x^dd)
7080	Dose Response
7081	y = aa + bb / (1 + 10^(cc*x+dd))
7090	Logistic 4
7091	y = aa + (bb-aa) /(1+(x/cc)^dd)
7100	Logistic 5
7101	y = aa + (bb-aa) /(1+((x-cc)/dd)^gg)
8000	Peak
8010	Beta Distribution
8011	y = aa + bb*z^gg*(1-z)^hh, z = (x-cc)/dd
8020	Extreme
8021	y = aa + bb*exp(-exp(-z)-z+1), z = (x-cc)/dd
8030	Gaussian
8031	y = aa + bb*exp(-0.5*((x-cc)/dd)^2)
8040	Log Normal
8041	y = aa + bb*exp(-(ln(x)-cc)^2/dd)
8050	Logistic Peak
8051	y = aa + bb*exp(-z)/(1+exp(-z))^2, z = (x-cc)/dd
8060	Lorentz Equation
8061	y = aa+bb*(cos(x-cc))^dd
8070	Lorentz Peak
8071	y = aa + bb*dd/(4*(x-cc)^2 + dd^2)
8080	Bell
8081	y = aa + bb/(1+(x-cc)^2)^dd
8090	Pulse
8091	y = aa + bb*(1-exp(-(x-cc)/dd))^gg * exp(-(x-cc)/hh)
8100	Rectangle function
8101	y = aa+bb if cc-dd < x < cc+dd, else y = aa
8110	Triangle function
8111	y = aa+bb*(x-cc+dd)/dd if cc-dd < x < cc, else y = aa+bb*(cc+dd-x)/dd if x < cc+dd, else y = aa
8120	Asym. Gaussian
8121	y = aa + bb*exp(-(x-cc)^2/2dd^2) if x < cc, else y = aa + bb*exp(-(x-cc)^2/2gg^2)
8130	Asym. Power
8131	y = aa + bb*(x-cc)^dd if x < cc, else y = aa + bb*(x-cc)^gg
8140	Asym. Sigmoidal
8141	y = aa+ bb*(1/(1+exp(-(x-cc+gg/2)/dd)))*(1-1/(1+exp(-(x-cc-gg/2)/hh)))
8150	Inverse Polynomial
8151	y = aa + bb/(1 + gg*z^2 + hh*z^4 + kk*z^6), z=2(x-cc)/dd
8160	Pseudo-Voigt
8161	y = aa + bb*(gg/dd/(1+(2(x-cc)/dd)^2) + (1-gg)/hh*exp(-(2(x-cc)/hh)^2))
8170	Gram-Charlier
8171	aa+ bb/dd/sqr(2pi)*exp(-z^2/2)*(1+H3*gg +H4*hh), z=(x-cc)/dd, H3(z)=(z3-3z)/6, H4(z)=(z4-6z3+3)/24
8180	Edgeworth-Cramer
8181	y = aa+ bb/dd/sqr(2pi)*exp(-z^2/2)*(1+H3*gg +H4*hh + H6*kk), z=(x-cc)/dd, H3(z)=(z3-3z)/6, H4(z)=(z4-6z3+3)/24, H6(z)=(z6-15z4+45z2-15)/72
8190	Beta Distribution*Exp
8191	y = aa + bb*(x-cc)^dd/(1+exp(x-gg)/kk)^hh
8200	Double exponential
8201	y = aa + bb*exp(-abs(x-cc)/dd)
8210	Weibull distribution
8211	y = aa + bb*z^(gg-1)*exp(-z^g), z = (x-cc)/dd
9000	Waveform
9010	Sinusoidal Fit
9011	y = aa + bb*cos(cc*x + dd)
9020	Sine
9021	y = aa*sin(PI*(x-bb)/cc)
9030	Sine2
9031	y = aa+bb*sin(PI*(x-cc)/dd)
9040	Sine Damp
9041	y = aa*sin(PI*(x-bb)/cc) * exp(-x/dd)
9050	Decaying Sinusoid
9051	y = (aa+bb*sin(cc*x+gg)) * exp(-x/dd)
9060	SineSqr
9061	y = aa*(sin(PI*(x-bb)/cc))^2
9070	SineSqr2
9071	y = aa+bb*(sin(PI*(x-cc)/dd))^2
9080	Truncated Fourier 1
9081	y = aa*cos(x+dd)+bb*cos(2*x+dd)+cc*cos(3*x+dd)
9090	Truncated Fourier 2
9091	y = aa+bb*cos(x+dd)+cc*cos(2*x+dd)+gg*cos(3*x+dd)
9100	Sinc
9101	y = aa+bb*sin(z)/z, z=PI*(x-cc)/dd
9200	SinSum2
9201	y = aa+bb*sin(PI*(x-cc)/dd)+gg*sin(PI*(x-hh)/kk)
9300	SinSum3
9301	y = aa+bb*sin(PI*x/cc)+dd*sin(PI*x/gg)+hh*sin(PI*x/kk)
10000	Asymptotic
10010	Asymptotic 1
10011	y = 1 - exp(-aa*x)
10020	Asymptotic 2-1
10021	y = 1 - aa^x
10030	Asymptotic 2-2
10031	y = cc+aa*(1-exp(-bbx))
10040	Asymptotic 3-1
10041	y = aa - bb*cc^x
10050	Asymptotic 3-2
10051	y = aa*(bb-exp(-ccx))
10060	Monomolecular 3-1
10061	y = aa*(1 - exp(-bb*(x-cc)))
10070	Monomolecular 3-2
10071	y = aa - b*exp(-cc*x)
10080	Box Lucas 2-1
10081	y = aa*(1 - exp(-bb*x))
10090	Box Lucas 2-2
10091	y = (aa/(aa-bb))*(exp(-bb*x) - exp(-aa*x))
10100	Chapman
10101	y = aa*(1 - exp(-bb*x))^cc
10110	Power Asymptotic 2-1
10111	y = aa*(1 - x^(-bb))
10120	Power Asymptotic 2-2
10121	y = 1 - 1/(1 + aa*x)^bb
10200	Reciprocal Model
10201	y = 1 / (aa + bb*x)
10210	Reciprocal Quadratic
10211	y = 1 / (aa + bb*x + cc*x^2)
10220	Reciprocal Logarithm
10221	y = 1/(aa+bb*ln(x))
10230	Bleasdale-Nelder3
10231	y = (aa + bb*x)^(-1/cc)
10240	Bleasdale-Nelder4
10241	y = (aa + bb*x^dd)^(-1/cc)
10250	Harris
10251	y = 1/(aa + bb*x^cc)
20000	Cartesian
20001	Polar
20002	Parametric
20010	Astroid
20011	x2/3 + y2/3 = aa^2/3
20013	x = aa*(cos(u))^3
20014	y = aa*(sin(u))^3
20020	Cardioid
20021	(x^2 + y^2 - 2aa*x)^2 = 4*aa^2*(x^2 + y^2)
20022	R = 2aa*(1 + cos(u))
20023	x = aa*(2*cos(u) - cos(2*u))
20024	y = aa*(2*sin(u) - sin(2(u))
20030	Catenary
20031	y = aa*cosh(x/aa)
20040	Cayley's Sextic
20041	4(x^2 + y^2 - aa*x)3 = 27*a^2*(x^2 + y^2)^2
20042	R = 4aa*(cos(u/3))^3
20050	Circle
20051	x^2 + y^2 = aa^2
20052	R = aa
20053	x = aa*cos(u)
20054	y = aa*sin(u)
20060	Cissoid of Diocles
20061	y^2 = x^3/(2*aa - x)
20062	R = 2aa*tan(u)*sin(u)
20070	Cochleoid
20072	R = aa*sin(u)/u
20080	Conchoid
20081	(x - bb)^2*(x^2 + y^2) - aa^2*x^2 = 0
20082	R = aa + bb/cos(u)
20090	Conchoid of de Sluze
20091	aa*(x - aa)(x^2 + y^2) = cc^2*x^2
20092	aa*(r*cos(u) - aa) = bb^2*(cos(u))^2
20100	Cycloid
20103	x = aa*u - bb*sin(u)
20104	y = aa - bb*cos(u)
20110	Devil's Curve
20112	R = a*sqrt[(25 - 24(tan(u))^2)/(1 - (tan(u))^2)]
20120	Double Folium
20121	(x^2 + y^2)^2 = 4aa*x*y^2
20122	R = 4*aa*cos(u)*(sin(u))^2
20130	Eight Curve
20131	x^4 = aa^2*(x^2-y^2)
20132	R^2 = aa^2*cos(2*u)/(cos(u))^4
20140	Ellipse
20141	x^2/aa^2 + y^2/bb^2 = 1
20143	x = aa*cos(u)
20144	y = bb*sin(u)
20150	Epicycloid
20153	x = (aa + bb)*cos(u) - bb*cos((aa/bb + 1)*u)
20154	y = (aa + bb)*sin(u) - bb*sin((aa/bb + 1)*u)
20160	Epitrochoid
20163	x = (aa + bb)*cos(u) - cc*cos((aa/bb + 1)*u)
20164	y = (aa + bb)*sin(u) - cc*sin((aa/bb + 1)*u)
20170	Equiangular Spiral
20172	R = aa*exp(u/tan(bb))
20180	Fermat's Spiral
20182	R^2 = a^2*u
20190	Folium
20192	R = -bb*cos(u) + 4*aa*cos(u)*sin(u)*sin(u)
20200	Folium of Descartes
20203	x = 3*aa*u/(1 + u^3)
20204	y = 3*aa*u^2/(1 + u^3)
20210	Freeth's Nephroid
20212	R = aa*(1 + 2*sin(u/2))
20220	Hyperbola
20221	x^2/aa^2 - y^2/bb^2 = 1
20223	x = aa/cos(u)
20224	y = bb*tan(u)
20230	Hyperbolic Spiral
20232	R = aa/u
20240	Hypocycloid
20243	x = (aa - bb)*cos(u) + bb*cos((aa/bb - 1)*u)
20244	y = (aa - bb)*sin(u) - bb*sin((aa/bb - 1)*u)
20250	Hypotrochoid
20253	x = (aa - bb)*cos(u) + cc*cos((aa/bb -1)*u)
20254	y = (aa - bb)*sin(u) - cc*sin((aa/bb -1)*u)
20260	Involute of a Circle
20263	x = aa*(cos(u) + u*sin(u))
20264	y = aa*(sin(u) - u*cos(u))
20270	Kampyle of Eudoxus
20271	aa^2x^4 = bb^4(x^2 + y^2)
20272	R = bb^2/(aa*(cos(u))^2)
20280	Kappa Curve
20281	y^2*(x^2 + y^2) = aa^2*x^2
20282	R = aa/tan(u)
20290	Lame Curves
20291	(x/aa)^cc + (y/bb)^cc = 1
20293	x=aa*cos(u)^(2/cc)
20294	y=aa*sin(u)^(2/cc)
20300	Lemniscate of Bernoulli
20302	r^2 = a^2*cos(2*u)
20310	Limacon of Pascal
20312	R = bb + 2*aa*cos(u)
20320	Lissajous Curves
20323	x = aa*sin(dd*u + cc)
20324	y = bb*sin(u)
20330	Lituus
20332	R^2 = a^2/u
20340	Neile's Semi-cubical Parabola
20341	y^3 = a*x^2
20350	Nephroid (kidney shaped)
20353	x = aa*(3*cos(u) - cos(3*u))
20354	y = aa*(3*sin(u) - sin(3*u))
20360	Newton's Diverging Parabolas
20361	aa*y^2 = x*(x^2 - 2*bb*x + cc), a > 0
20370	Parabola
20371	y = aa*x^2 + bb*x + cc
20380	Pearls of Sluze
20381	y = bb*(aa - x)^cc*x^dd
20390	Pear-shaped Quartic
20391	bb^2*y^2 = x^3*(aa-x)
20400	Plateau Curves
20403	x = aa*sin(bb + cc)*u/sin((bb - cc)*u)
20404	y = 2*aa*sin(bb*u)*sin(cc*u)/sin((bb - cc)*u)
20410	Pursuit Curve
20411	y = aa*x^2 - log(x)
20420	Quadratrix of Hippias
20421	y = x/tan(x/2/aa)
20422	R = 2*aa*u/(PI*sin(u))
20430	Rhodonea Curves
20432	R = aa* sin(bb*u)
20440	Right Strophoid
20441	y^2 = x^2*(aa - x)/(aa + x)
20442	R = bb*sin(aa - 2*u)/sin(aa - u)
20450	Serpentine
20451	x^2*y + aa*bb*y - a^2*x = 0, aa*bb > 0
20460	Sinusoidal Spirals
20462	R^bb = aa^bb*cos(bb*u)
20470	Spiral of Archimedes
20472	R = aa *u
20480	Spiric Sections
20481	(bb^2 - aa^2+ cc^2 + x^2 + y^2)^2 = 4*bb^2*(x^2 + c^2)
20490	Straight Line
20491	y = aa*x + bb
20493	x = aa*u + bb
20494	y = cc*u + dd
20500	Talbot's Curve
20503	x = (aa^2 + cc^2*(sin(u))^2)*cos(u)/aa
20504	y = (aa^2 - 2*cc^2 + cc^2*(sin(u))^2)*sin(u)/bb
20510	Tractrix (equitangential curve)
20513	x = aa/cosh(u)
20514	y = u - tanh(u)
20520	Tricuspoid (or deltoid)
20523	x = aa*(2*cos(u) + cos(2*u))
20524	y = aa*(2*sin(u) - sin(2*u))
20530	Trifolium (leaf-shaped)
20532	R = -bb*cos(u) + 4*aa*cos(u)*sin(u)*sin(u)
20540	Trisectrix of Maclaurin
20541	y^2*(aa + x) = x^2*(3*aa - x)
20542	R = 2*aa*sin(3*u)/sin(2*u)
20550	Tschirnhaus'S Cubic
20551	3*aa*y^2 = x*(x-aa)^2
20560	Watt's Curve
20562	R^2 = bb^2 - [aa*sin(u)(cc^2 - aa^2*(cos(u))^2)]^2
20570	Witch of Agnesi
20571	y*(x^2 + aa^2) = aa^3
20573	x = aa*u
20574	y = aa/(1 + u^2)