<span class="op">-</span> <span class="va">range_old</span><span class="op">[</span><span class="fl">1</span><span class="op">]</span><span class="op">)</span><span class="op">/</span><span class="op">(</span><span class="va">range_old</span><span class="op">[</span><span class="fl">2</span><span class="op">]</span> <span class="op">-</span> <span class="va">range_old</span><span class="op">[</span><span class="fl">1</span><span class="op">]</span><span class="op">)</span> <span class="op">*</span>
        