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    <p>What you could do is create a generic interface that includes the operations that you want to support, create a generic factory to create instances for the supported types to perform the operations, and use it.</p> <p>e.g.,</p> <pre><code>public interface IOperations&lt;T&gt; { T Add(T a, T b); T Subtract(T a, T b); T Multiply(T a, T b); T Divide(T a, T b); } public static class Operations&lt;T&gt; { public static IOperations&lt;T&gt; Default { get { return Create(); } } static IOperations&lt;T&gt; Create() { var type = typeof(T); switch (Type.GetTypeCode(type)) { case TypeCode.Byte: return (IOperations&lt;T&gt;)new ByteOperations(); case TypeCode.Single: return (IOperations&lt;T&gt;)new SingleOperations(); default: var message = String.Format("Operations for type {0} is not supported.", type.Name); throw new NotSupportedException(message); } } class ByteOperations : IOperations&lt;byte&gt; { public byte Add(byte a, byte b) { return unchecked ((byte)(a + b)); } public byte Subtract(byte a, byte b) { return unchecked ((byte)(a - b)); } public byte Multiply(byte a, byte b) { return unchecked ((byte)(a * b)); } public byte Divide(byte a, byte b) { return unchecked ((byte)(a / b)); } } class SingleOperations : IOperations&lt;float&gt; { public float Add(float a, float b) { return a + b; } public float Subtract(float a, float b) { return a - b; } public float Multiply(float a, float b) { return a * b; } public float Divide(float a, float b) { return a / b; } } } </code></pre> <pre><code>T Mean&lt;T&gt;(IList&lt;T&gt; numbers) { var operations = Operations&lt;T&gt;.Default; var sum = numbers.Aggregate(operations.Add); var count = (T)Convert.ChangeType(numbers.Count, typeof(T)); return operations.Divide(sum, count); } var resultByte = Mean(new byte[] { 1, 2, 3, 4 }); // 2 var resultSingle = Mean(new float[] { 1.1F, 2.1F, 3.1F, 4.1F }); // 2.6F var resultInt = Mean(new int[] { 1, 2, 3, 4 }); // not supported </code></pre> <p>If you don't mind a small performance hit, you could dynamically create the operations needed.</p> <pre><code>class GenericOperations&lt;T&gt; : IOperations&lt;T&gt; { public GenericOperations() { add = CreateLambda(Expression.Add); subtract = CreateLambda(Expression.Subtract); multiply = CreateLambda(Expression.Multiply); divide = CreateLambda(Expression.Divide); } private Func&lt;T, T, T&gt; add, subtract, multiply, divide; private static Func&lt;T, T, T&gt; CreateLambda(Func&lt;Expression, Expression, BinaryExpression&gt; op) { var a = Expression.Parameter(typeof(T), "a"); var b = Expression.Parameter(typeof(T), "b"); var body = op(a, b); var expr = Expression.Lambda&lt;Func&lt;T, T, T&gt;&gt;(body, a, b); return expr.Compile(); } public T Add(T a, T b) { return add(a, b); } public T Subtract(T a, T b) { return subtract(a, b); } public T Multiply(T a, T b) { return multiply(a, b); } public T Divide(T a, T b) { return divide(a, b); } } </code></pre>
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