Heat capacities as a function of temperature, pressure and composition.

A central place to check bounds, should be used much more frequently

Simple single-output lookup (no error code — returns 1e300 on failure).

Simple string function to check for end of string being equal to given string

Get the maximum pressure in Pa

Whether a property's saturation Chebyshev approximation has been populated. P and D are always present; H/S/U are only present after add_variable() ha

Integration functions Integrating coefficients for polynomials is done by dividing the * original coefficients by (i+1) and elevating the order by 1

* \brief Determine if a set of inputs are single-phase or inside the saturation table * @param main The main variable that is being provided

Append a line to the EES debug log, skipping silently if the file can't be opened. Debug logging must never crash or abort the EES call, so the fopen

Plots two data series using the same axis. You can choose if you prefer points or a line for the reference data. This can be

\brief Specify T&P, otherwise they are loaded the HEOS instance */

Set the reducing density to be used

Return the molar entropy in J/mol/K

PRODUCTION cascade: try each method in turn and ACCEPT the first result that is both (a) a faithful (h,s) reproduction and (b) mechanically stable (dp

Prototype: single-phase HS solve via homotopy continuation in (T, ln rho) from a superancillary saturation anchor. Working in w = ln(rho) makes rho<0

Remove curly brackets from processed Latex code A function that always returns unicode. It also tries to recurse into lists and dicts

In the 4-th order Householder method, three derivatives of the input variable are needed, it yields the following method: \f[ x_{n+1} = x_n - f(x_n

Return a list with the values of isoline name to plot

! Returns the natural logarithm of K for component i using the method from Wilson as in \f[ \ln K_i = \ln\left(\frac{p_{c,i}}{p}\right)+5.373(

Calculate T (dry bulb temp) and psi_w (water mole fraction) given the pair of inputs

A raised exception is acceptable IFF it is a physics/domain error, NOT the binding-marshalling bug (uncallable out-param method / unconvertible re

Split a delimited param string into a list, mirroring the str.split() used by the Cython high-level convenience wrappers below (FluidsList, get_aliase

O(1), no curve evaluation.

\brief Add and convert an old-style exponential term to generalized form * * Term of the format * \f$ \alpha^r=\displaystyle\sum_i n_i \delta^{d

\brief Add and convert an old-style power (polynomial) term to generalized form * * Term of the format * \f$ \alpha^r=\left\lbrace\begin{array}{

Build a deliberately overlapping-AABB but disjoint-curve atlas. Primary axis a in [0, 10], linear. Region L: b_lo = 0, b_hi = 0.5 *

Test function: f(x, y) = sin(pi x) * (1 + 0.3 sin(pi y)) on [0, 1]^2. Two reasons for this choice: 1. The second derivative of sin(pi z) vanishes at

Go from string to enum key

The same function as the SecCool converter, the original source code is slightly different though. That is why the implementation is i

Read an env var as a size_t, returning def if absent or malformed.

Recompute the equal-fugacity equilibrium residual max_i |ln(f_i^V / f_i^L)| from a converged two-phase flash result, by re-solving each reported phase

* @brief Vectorized direct evaluation that bypasses the AbstractState cache. * * Evaluate one or more outputs at one or more input points, w