Vector, right arrow or ray

[MartheGjelstad]

In the expressions below, some are read as "vektor", some as "stråle" and some as "høyrepil".

<math>
  <mover>
    <mi>r</mi>
    <mo>&#x2192;</mo>
  </mover>
</math>

<math>
  <mover>
    <msub>
      <mi>e</mi>
      <mi>x</mi>
    </msub>
    <mo stretchy="false">&#x2192;</mo>
  </mover>
  <mo>=</mo>
  <mrow>
    <mo>[</mo>
    <mrow>
      <mn>1</mn>
      <mo>,</mo>
      <mn>0</mn>
    </mrow>
    <mo>]</mo>
  </mrow>
</math>

<math>
  <mover>
    <mrow>
      <mi>A</mi>
      <mo>&#x2062;</mo>
      <mi>B</mi>
    </mrow>
    <mo>&#x2192;</mo>
  </mover>
  <mo>=</mo>
  <mstyle displaystyle="false">
    <mo>[</mo>
    <mrow>
      <mn>1</mn>
      <mo>,</mo>
      <mn>2</mn>
    </mrow>
    <mo>]</mo>
  </mstyle>
</math>

<math>
  <mover>
    <mi>a</mi>
    <mo stretchy="false">&#x2192;</mo>
  </mover>
  <mo>=</mo>
  <mrow>
    <mo>[</mo>
    <mrow>
      <mn>2</mn>
      <mo>,</mo>
      <mn>3</mn>
    </mrow>
    <mo>]</mo>
  </mrow>
  <mo>=</mo>
  <mrow>
    <mrow>
      <mn>2</mn>
      <mo>&#xB7;</mo>
      <mover>
        <msub>
          <mi>e</mi>
          <mi>x</mi>
        </msub>
        <mo stretchy="false">&#x2192;</mo>
      </mover>
    </mrow>
    <mo>+</mo>
    <mrow>
      <mn>3</mn>
      <mo>&#xB7;</mo>
      <mover>
        <msub>
          <mi>e</mi>
          <mi>y</mi>
        </msub>
        <mo stretchy="false">&#x2192;</mo>
      </mover>
    </mrow>
  </mrow>
</math>