1 files changed, 40 insertions, 0 deletions
diff --git a/libraries/CurveFitting/src/curveFitting.h b/libraries/CurveFitting/src/curveFitting.h
new file mode 100644
index 0000000..52dfb17
--- /dev/null
+++ b/libraries/CurveFitting/src/curveFitting.h
@@ -0,0 +1,40 @@
+/*
+  curveFitting.h - Library for fitting curves to given
+  points using Least Squares method, with Cramer's rule
+  used to solve the linear equation. Max polynomial order 20.
+  Created by Rowan Easter-Robinson, August 23, 2018.
+  Released into the public domain.
+*/
+
+#ifndef curveFit_h
+#define curveFit_h
+
+#include <Arduino.h>
+#define MAX_ORDER 20
+
+#ifndef CURVE_FIT_DEBUG
+#define CURVE_FIT_DEBUG 0
+#endif
+
+/* Enum for error messages */
+enum curveFitERROR{
+	ORDER_AND_NCOEFFS_DO_NOT_MATCH = -1,
+	ORDER_INCORRECT = -2,
+	NPOINTS_INCORRECT = -3
+};
+
+/* Matrix Helper Functions */
+void printMat(const char *s, double*m, int n);
+void showmat(const char *s, double **m, int n);
+void cpyArray(double *src, double*dest, int n);
+void subCol(double *mat, double* sub, uint8_t coln, uint8_t n);
+double curveFitPower(double base, int exponent);
+
+/* Determinant matrix functions */
+int trianglize(double **m, int n);
+double det(double *in, int n, uint8_t prnt);
+
+/* Curve fitting functions */
+int fitCurve (int order, int nPoints, double py[], int nCoeffs, double *coeffs);
+int fitCurve (int order, int nPoints, double px[], double py[], int nCoeffs, double *coeffs);
+#endif