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diff --git a/sdk/src/java/org/cyanogenmod/internal/util/MathUtils.java b/sdk/src/java/org/cyanogenmod/internal/util/MathUtils.java
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+++ b/sdk/src/java/org/cyanogenmod/internal/util/MathUtils.java
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+/*
+ * Copyright (C) 2016 The CyanogenMod Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.cyanogenmod.internal.util;
+
+public final class MathUtils {
+
+    /**
+     * Given a range of values which change continuously in a non-linear way,
+     * we can map back and forth to a linear scale using some quadratic equations.
+     *
+     * The linear scale ranges from 0 -> 1. This method will calculate the
+     * coefficients needed to solve the conversion functions in the next two methods.
+     *
+     * lower = actual value when linear value = 0
+     * mid = actual value when linear value = .5
+     * upper actual value when linear value = 1
+     *
+     * @param lower
+     * @param mid
+     * @param upper
+     * @return array of coefficients
+     */
+    public static double[] powerCurve(double lower, double mid, double upper) {
+        final double[] curve = new double[3];
+        curve[0] = ((lower * upper) - (mid * mid)) / (lower - (2 * mid) + upper);
+        curve[1] = Math.pow((mid - lower), 2) / (lower - (2 * mid) + upper);
+        curve[2] = 2 * Math.log((upper - mid) / (mid - lower));
+        return curve;
+    }
+
+    /**
+     * Map a value on a power curve to a linear value
+     *
+     * @param curve obtained from powerCurve()
+     * @param value to convert to linear scale
+     * @return linear value from 0 -> 1
+     */
+    public static double powerCurveToLinear(final double[] curve, double value) {
+        return Math.log((value - curve[0]) / curve[1]) / curve[2];
+    }
+
+    /**
+     * Map a value on a linear scale to a value on a power curve
+     *
+     * @param curve obtained from powerCurve()
+     * @param value from 0 -> 1 to map onto power curve
+     * @return actual value on the given curve
+     */
+    public static double linearToPowerCurve(final double[] curve, double value) {
+        return curve[0] + curve[1] * Math.exp(curve[2] * value);
+    }
+
+
+}