<liclass="hint-item"id="hint-moreinfo"tabindex="-1"><p><spanclass="bold">${_("For detailed information, see <ahref="http://edx-guide-for-students.readthedocs.org/en/latest/SFD_mathformatting.html">Entering Mathematical and Scientific Expressions</a> in the <ahref="http://edx-guide-for-students.readthedocs.org/en/latest/index.html">edX Guide for Students</a>.")}</span></p></li>
<liclass="hint-item"id="hint-operators"tabindex="-1"><p><spanclass="bold">${_("Operators")}:</span> + - * / (add, subtract, multiply, divide), ^ (raise to a power), _ (add a subscript), || (parallel resistors). Examples: x^(n+1), v_IN+v_OUT, 1||2</p></li>
<liclass="hint-item"id="hint-greek-letters"tabindex="-1"><p><spanclass="bold">${_("Greek letters")}:</span> Type name of letter. Examples: alpha, lambda</p></li>
<liclass="hint-item"id="hint-constants"tabindex="-1"><p><spanclass="bold">${_("Constants")}:</span> c, e, g, i, j, k, pi, q, T </p></li>
<liclass="hint-item"id="hint-functions-intro"tabindex="-1"><p>To use functions, type name of function and then add expression in parentheses. Examples: sqrt(x+y), abs(x+y), log2(x+y), arccsch(x+y)</p>
<liclass="hint-item"id="hint-moreinfo"tabindex="-1"><p><spanclass="bold">${_("For detailed information, see <ahref='http://edx-guide-for-students.readthedocs.org/en/latest/SFD_mathformatting.html'>Entering Mathematical and Scientific Expressions</a> in the <ahref='http://edx-guide-for-students.readthedocs.org/en/latest/index.html'>edX Guide for Students</a>.")}</span></p></li>
<liclass="hint-item"id="hint-paren"tabindex="-1"><p>Use parentheses () to make expressions clear.</p></li>
<liclass="hint-item"id="hint-spaces"tabindex="-1"><p>Do not use spaces in expressions.</p></li>
<liclass="hint-item"id="hint-howto-functions"tabindex="-1"><p>For functions, type the name of the function, then the expression in parentheses.</p></li>
Affixes")}:</span> Percent sign (%) and metric affixes (d, c, m, u, n, p, k, M, G, T) </p></li>
<liclass="hint-item"id="hint-affix-info"tabindex="-1"><p>Type number and affix. Examples: 20%, 15u, 8T</p></li>
<liclass="hint-item"id="hint-scientific-e-notation"tabindex="-1"><p><spanclass="bold">${_("Scientific and e Notation")}:</span> Type ^ or e and exponent. Examples: 10^-9, 10^3, 1e-9, 1e3</p></li>