EES always passes `fluid` as a fixed 256-char buffer (see the header comment at the top of this file). Route every write to it through this helper so

Update the reference values and clear the state

Shared property list for HmassP_INPUTS: h is the input (secondary axis), so the outputs are ρ, T, s, u, w (speed of sound). Density is log-transforme

Calculates a state change defined by the properties in1 and in2 Uses self.states[start] and self.states[start+1] (or self.states[0]) to defin

Portable process ID for tests that stage scratch files under fs::temp_directory_path() — suffix the path with this so two concurrent CatchTestRunner i

Helper: allocate Mathcad string and copy contents

@param T Temperature, in K @param p Pressure (not used) @param psi_w Water mole fraction (mol_w/mol_ha) @param vmolar Mixture molar volume in m^3/m

Mixed virial components

Broadcast a size-1 vector up to length n; lengths other than 1 or n are an error.

Write a CBOR head: 3-bit major type + definite length/value n.

Scalar-or-sequence -> vector<double> for the vectorized PropsSI/HAPropsSI overloads; is_seq reports whether the input was array-like (vs a scalar). M

Canonical-JSON string of the options this instance was built with. Default returns "" — backends that accept factory-string options (`?{...}` suffix)

Return the mass-based constant volume specific heat in J/kg/K

Return the term \f$ \alpha^0_{\tau\tau\tau} \f$

Derivative coefficients calculation Deriving coefficients for polynomials is done by multiplying the * original coefficients with i and lowering the

Use 2D arrays X and Y to calculate a Z value

Decode a CBOR byte buffer into an nlohmann::json document. Throws CoolProp::ValueError (never a raw nlohmann exception) on failure.

Determine all the values of temperature that correspond to intersections with the superancillary function, for both the vapor and liquid phases \

Get the (a1, a2) stamp recorded when the caloric superancillaries were first built. Returns nullopt if not yet built.

Get the maximum absolute error for this fit @returns max_abs_error the maximum absolute error for ancillaries that are characterized by maximum absolu

Solve for (possibly multiple) values of the independent variable x given a value of the dependent variable y */

The objective function to be minimized

The mass-based caloric accessor matching a D+X input pair.

Try to pull a SuperAncillary handle off the source AbstractState. Returns null when the source isn't a HelmholtzEOSMixtureBackend (e.g. IF97, REFPROP)

Validate a JSON-formatted input string against a JSON-formatted draft-07 schema string. On a validation failure, `errstr` receives a human-comprehensi

Recursively fold a JSON subtree into the running hash. See the byte-stream contract in the block comment above.

Evaluate the expansion with Clenshaw's method

Calculate properties of humid air from SI inputs.

The part that multiplies the coefficients