Mathcad syntax

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 specifi number of fraction digits:

• round(z,n): 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,

round(π-2πi) returns 3-6i

round(-(π-2πi)) returns -3+6i.

• trunc(z): returns the integer part of z by removing the fractional part. For example

trunc(2.7) returns 2

trun(-2.7) returns -2

• floor(z): returns the greatest integer ≤ z

floor(π-2πi) returns 3-7i

floor(-(π-2πi)) returns -4+6i

• ceil(z): returns the smallest integer ≥ z

ceil(π-2πi) returns 4-6i

ceil(-(π-2πi)) returns -3+7i