Tcl Math Floor

Many commands use expr behind the scenes in order to evaluate test expressions such as if while and for loops discussed in later sections.

Tcl math floor. Math cov value value value. Assume variable a holds 10 and variable b holds 20 then. The bigfloat package provides arbitrary precision floating point math capabilities to the tcl language. To retain all of the significant bits of an ieee floating point number set tcl precision to 17.

Math integrate list of xy value pairs. Floor returns the largest integral floating point value i e. In addition to these predefined functions applications may define additional functions by using proc or any other method such as interp alias or tcl createobjcommand to define new commands in the tcl mathfunc namespace. Some examples using math functions are given below live demo usr bin tclsh namespace import tcl mathfunc puts tan 10 puts pow 10 2 puts ceil 10 34 puts hypot 10 20 puts srand 45 puts log 10 puts srand 45.

With a zero fractional part not greater than arg. If tcl precision is unset then 6 digits of precision are used. Return the coefficient of variation expressed as percent of two or more numeric values. The global variable tcl precision determines the the number of significant digits that are retained when floating values are converted to strings except that trailing zeroes are omitted.

All of the advice given here for expr also holds for these other commands. The tcl command for doing math type operations is expr the following discussion of the expr command is extracted and adapted from the expr man page. If a value is converted to string with 17 digits of precision and then converted back to binary for some later calculation the resulting binary value is guaranteed to be identical to the original one.