Top "Nonlinear-functions" questions

A function that does not validate the additivity or homogeneity properties is characterized as non-linear.

R: Using equation with natural logarithm in nls

Good day, I am struggling with R and natural logarithm (ln). Firstly, I cannot find a ln(x) function in …

r nonlinear-functions natural-logarithm
Solving non-linear equations in python

I have 4 non-linear equations with three unknowns X, Y, and Z that I want to solve for. The equations are …

python numpy scipy nonlinear-functions
nlme error "Invalid formula for groups" although random effect specified

I have done some searching for this, but the mailing list posts I have found are associated with the person …

r syntax-error glm nonlinear-functions
Error in optim: function cannot be evaluated at initial parameters

So I've run into this weird error in R. I have a simple function which returns an error term when …

r nonlinear-functions nonlinear-optimization nlm
How to find minimum of nonlinear, multivariate function using Newton's method (code not linear algebra)

I'm trying to do some parameter estimation and want to choose parameter estimates that minimize the square error in a …

minimization newtons-method nonlinear-functions
Non linear function parameter estimation - matlab, lsqnonlin, fzero

I'm having difficulty with a fitting problem. From the errors that I get I imagine that the boundaries are not …

matlab least-squares nonlinear-functions
Solve this equation with fixed point iteration

How can I solve this equation x3 + x - 1 = 0 using fixed point iteration? Is there any fixed-point iteration code (especially …

python equation nonlinear-functions numerical-analysis fixed-point-iteration
Solve this equation with fixed point iteration method in python

f(x) = x^2- 2x - 3 = 0 How can I solve this equation non-linear, and used fixed point iteration method in …

python numerical-methods equation nonlinear-functions fixed-point-iteration
Sine Table Interpolation

I want to put together a SDR system that tunes initially AM, later FM etc. The system I am planning …

signal-processing trigonometry interpolation radio nonlinear-functions
How to solve risk parity allocation using Python

I would like to solve risk parity problem using python. Risk parity is a classic approach for portfolio construction in …

python equation portfolio nonlinear-functions