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<p>
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<p>
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$x is a real number, which can be replaced by an expression, to allow
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$x is a real number, which can be replaced by an expression, to allow
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composite functions.
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composite functions.
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<p>
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<p>
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<center><table border=2 cellspacing=1 cellpadding=3 bgcolor="#d0e0c0">
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$table_header
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$table_tr
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<tr><th>function<th>description<th>how to type
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$table_tr<th>Function<th>Description<th>How to type
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<tr>
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<tr><td>$m_pi
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$table_tr<td>$m_pi
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    <td>constant known to all<td>
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    <td>constant known to all<td>
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    <tt>pi</tt> or <tt>Pi</tt> or <tt>PI</tt>
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    <tt>pi</tt> or <tt>Pi</tt> or <tt>PI</tt>
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<tr><td><i>e</i><td>base of natural logarithmic<td>
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$table_tr<td><i>e</i><td>base of natural logarithmic<td>
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    <tt>e</tt> or <tt>E</tt>
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    <tt>e</tt> or <tt>E</tt>
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<tr>
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<tr><td>|$x|<td>absolute value of $x<td><tt>abs(x)
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$table_tr<td>|$x|<td>absolute value of $x<td><tt>abs(x)
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<tr><td>sign($x)<td>sign of $x:
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$table_tr<td>sign($x)<td>sign of $x:
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       <br>&nbsp;=-1 if $x&lt;0<br>&nbsp;=0 if $x=0<br>&nbsp;=1 if $x>0
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       <br>&nbsp;=-1 if $x&lt;0<br>&nbsp;=0 if $x=0<br>&nbsp;=1 if $x>0
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       <td><tt>sign(x)
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       <td><tt>sign(x)
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<tr><td>
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$table_tr<td>
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    !instex $$ \sqrt x $$
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    !instex $$ \sqrt x $$
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    <td>square root of $x
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    <td>square root of $x
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    <td><tt>sqrt(x)</tt> or <tt>x^(1/2)</tt>
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    <td><tt>sqrt(x)</tt> or <tt>x^(1/2)</tt>
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<tr><td>?<td>closest integer to $x<td><tt>rint(x)</tt>
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$table_tr<td>?<td>closest integer to $x<td><tt>rint(x)</tt>
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<tr><td>?<td>largest integer <=$x<td><tt>floor(x)</tt>
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$table_tr<td>?<td>largest integer <=$x<td><tt>floor(x)</tt>
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<tr><td>?<td>smallest integer >=$x<td><tt>ceil(x)</tt>
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$table_tr<td>?<td>smallest integer >=$x<td><tt>ceil(x)</tt>
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<tr>
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$table_tr
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<tr><td><i>e<sup>x</sup><td>exponential<td>
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$table_tr<td><i>e<sup>x</sup><td>exponential<td>
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    <tt>exp(x)</tt> or <tt>e^x</tt> or <tt>E^x</tt>
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    <tt>exp(x)</tt> or <tt>e^x</tt> or <tt>E^x</tt>
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<tr><td>ln($x)<td>natural logarithmic<td><tt>log(x)</tt> or <tt>ln(x)</tt>
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$table_tr<td>ln($x)<td>natural logarithmic<td><tt>log(x)</tt> or <tt>ln(x)</tt>
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<tr>
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$table_tr
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<tr><td>sin($x)<td>trigonometric sine<td><tt>sin(x)
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$table_tr<td>sin($x)<td>trigonometric sine<td><tt>sin(x)
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<tr><td>cos($x)<td>trigonometric cosine<td><tt>cos(x)
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$table_tr<td>cos($x)<td>trigonometric cosine<td><tt>cos(x)
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<tr><td>tg($x)<td>trigonometric tangent<td><tt>tan(x)</tt> or <tt>tg(x)</tt>
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$table_tr<td>tg($x)<td>trigonometric tangent<td><tt>tan(x)</tt> or <tt>tg(x)</tt>
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<tr><td>ctg($x)<td>trigonometric cotangent<td><tt>cotan(x)</tt> or <tt>ctg(x)</tt>
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$table_tr<td>ctg($x)<td>trigonometric cotangent<td><tt>cotan(x)</tt> or <tt>ctg(x)</tt>
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    </tt> <br> or <tt>cot(x)
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    </tt> <br> or <tt>cot(x)
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<tr><td>arcsin($x)<td>inverse trigonometric<td><tt>asin(x)</tt> or
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$table_tr<td>arcsin($x)<td>inverse trigonometric<td><tt>asin(x)</tt> or
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    <tt>arcsin(x)</tt>
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    <tt>arcsin(x)</tt>
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<tr><td>arccos($x)<td>inverse trigonometric<td><tt>acos(x)</tt> or
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$table_tr<td>arccos($x)<td>inverse trigonometric<td><tt>acos(x)</tt> or
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    <tt>arccos(x)</tt>
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    <tt>arccos(x)</tt>
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<tr><td>arctg($x)<td>inverse trigonometric<td><tt>atan(x)</tt> or
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$table_tr<td>arctg($x)<td>inverse trigonometric<td><tt>atan(x)</tt> or
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    <tt>arctan(x)</tt> <br>or <tt>arctg(x)</tt>
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    <tt>arctan(x)</tt> <br>or <tt>arctg(x)</tt>
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<tr>
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$table_tr
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<tr><td>sh($x)<td>parabolic sine<td><tt>sh(x)</tt> or <tt>sinh(x)</tt>
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$table_tr<td>sh($x)<td>parabolic sine<td><tt>sh(x)</tt> or <tt>sinh(x)</tt>
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<tr><td>ch($x)<td>parabolic cosine<td><tt>ch(x)</tt> or <tt>cosh(x)</tt>
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$table_tr<td>ch($x)<td>parabolic cosine<td><tt>ch(x)</tt> or <tt>cosh(x)</tt>
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<tr><td>th($x)<td>parabolic tangent<td><tt>th(x)</tt> or <tt>tanh(x)</tt>
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$table_tr<td>th($x)<td>parabolic tangent<td><tt>th(x)</tt> or <tt>tanh(x)</tt>
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<tr><td>Argsh($x)<td>inverse parabolic<td><tt>asinh(x)</tt> or <tt>argsh(x)</tt>
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$table_tr<td>Argsh($x)<td>inverse parabolic<td><tt>asinh(x)</tt> or <tt>argsh(x)</tt>
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    <br>or <tt>Argsh(x)</tt>
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    <br>or <tt>Argsh(x)</tt>
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<tr><td>Argch($x)<td>inverse parabolic<td><tt>acosh(x)</tt> or <tt>argch(x)</tt>
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$table_tr<td>Argch($x)<td>inverse parabolic<td><tt>acosh(x)</tt> or <tt>argch(x)</tt>
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    <br>or <tt>Argch(x)</tt>
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    <br>or <tt>Argch(x)</tt>
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<tr><td>Argth($x)<td>inverse parabolic<td><tt>atanh(x)</tt> or <tt>argth(x)</tt>
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$table_tr<td>Argth($x)<td>inverse parabolic<td><tt>atanh(x)</tt> or <tt>argth(x)</tt>
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    <br>or <tt>Argth(x)</tt>
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    <br>or <tt>Argth(x)</tt>
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<tr><td>max(x,y)<td>Bigger among x and y<td><tt>max(x,y)</tt>
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$table_tr<td>max(x,y)<td>Bigger among x and y<td><tt>max(x,y)</tt>
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<tr><td>min(x,y)<td>Smaller among x and y<td><tt>min(x,y)
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$table_tr<td>min(x,y)<td>Smaller among x and y<td><tt>min(x,y)
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<tr><td>gcd(x,y)<td>Greatest Common Divisor<td><tt>max(x,y)
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$table_tr<td>gcd(x,y)<td>Greatest Common Divisor<td><tt>max(x,y)
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<tr><td>lcm(x,y)<td>Least Commun Multiple<td><tt>min(x,y)
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$table_tr<td>lcm(x,y)<td>Least Commun Multiple<td><tt>min(x,y)
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</table></center>
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</table></center>
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!exit
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!exit
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!! Add the following:
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!! Add the following:
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<ul>
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<ul>