# Questions tagged [l3fp]

Part of the LaTeX3 bundle to handle Floating-point operations

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### Factorial (or, even better, binomial coefficient) function

Is there a function in l3fp for calculating factorials or, even better, binomial coefficients directly?
2answers
274 views

### Checking if an integer is a member of an integer list

Is there any way to check whether an integer is a member of a list of integer numbers and return a boolean? I found this neat solution, here that does a great job. It checks whether a string exists ...
2answers
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### Iterative method to solve nonlinear equations

I am trying to solve the following equation (coming from fluid dynamics) using TeX. 1/sqrt(lambda) = 2 * log(Re * sqrt(lambda)) - 0.8 where lambda is the unknown, sqrt means "square root", the log ...
1answer
176 views

### Converting lengths with lengthconvert and l3fp

The package lengthconvert "uses the modul l3fp to convert the length". But its conversions are totally off the charts: \documentclass{article} \usepackage{lengthconvert} \begin{document} \the\...
1answer
346 views

### Store results of a calculation automatically under a new macro name

As I am now accessing values from tables via a macro to make dynamic references in the text (see here) and make calculations with it, I need a way to make the resulting variables under which the ...
1answer
798 views

### l3fp “Number too big” error

Consider the following example: \documentclass{article} \usepackage{pstricks-add} \usepackage{expl3} \ExplSyntaxOn \cs_new_eq:NN \calc \fp_eval:n \ExplSyntaxOff \newcommand*\SideLength{\calc{...