title: How to handle multi dimensional matrices in SQL?
body: <p>I am just learning to use relational databases, so my knowledge is limited. I have data points, that rely on 3 values: Product type, age and a value x.
  So for each product type, there is a matrix from which one can get the price dependent on age and value x.</p>
  
  <p><strong>Product A</strong></p>
  
  <pre><code>         Value x
  Age                 0 - 18    19 - 64    65 - 150
           50          5.6        6.3        3.5
           100         5.2        3.5        6.3
           200         6.4        3.7       12.3
           500         3.9        2.3        5.5
  </code></pre>
  
  <p>There are several of those products. The values of x and the ranges of age can vary.</p>
  
  <p>So the price of the product is dependend on product type, age, and value x. How do I want to design my tables in order to provide normalization?</p>
  
  <p>Thank you in advance.</p>