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Mathcad rounding syntax
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The Mathcad notation or Mathcad syntax is used to enter formulas and commands for Mathcad, a commercial mathematical software. Numbers Rounding functions Several functions are available for rounding fractional numeric values to integral values or specific number of fraction digits: *<code>round(z,n)</code>: returns z rounded to n (optional) decimal places. If n is omitted, returns z rounded to the nearest integer (n is assumed to be zero). If n<0, returns z rounded to n places to the left of the decimal point. For example, ::<code>round(π-2πi)</code> returns 3-6i ::<code>round(-(π-2πi))</code> returns -3+6i. *<code>trunc(z)</code>: returns the integer part of z by removing the fractional part. For example, ::<code>trunc(2.7)</code> returns 2 ::<code>trunc(-2.2)</code> returns -2 *<code>floor(z)</code>: returns the greatest integer ≤ z ::<code>floor(π-2πi)</code> returns 3-7i ::<code>floor(-(π-2πi))</code> returns -4+6i *<code>ceil(z)</code>: returns the smallest integer ≥ z ::<code>ceil(π-2πi)</code> returns 4-6i ::<code>ceil(-(π-2πi))</code> returns -3+7i 
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