calc - arbitrary precision calculator. Version 2.9.3t6

From Jean-Marc Zucconi.
Submitted by:	jmz

1 files changed, 53 insertions, 0 deletions

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+Calc is an interactive calculator which provides for easy large
+numeric calculations, but which also can be easily programmed for
+difficult or long calculations.  It can accept a command line
+argument, in which case it executes that single command and exits.
+Otherwise, it enters interactive mode.  In this mode, it accepts
+commands one at a time, processes them, and displays the answers.  In
+the simplest case, commands are simply expressions which are
+evaluated.  For example, the following line can be input:
+
+        3 * (4 + 1)
+
+and the calculator will print 15.
+
+The special '.' symbol (called dot), represents the result of the last
+command expression, if any.  This is of great use when a series of
+partial results are calculated, or when the output mode is changed and
+the last result needs to be redisplayed.  For example, the above
+result can be doubled by typing:
+
+        . * 2
+
+and the calculator will print 30.
+
+For more complex calculations, variables can be used to save the
+intermediate results.  For example, the result of adding 7 to the
+previous result can be saved by typing:
+
+        old = . + 7
+
+Functions can be used in expressions.  There are a great number of
+pre-defined functions.  For example, the following will calculate the
+factorial of the value of 'old':
+
+        fact(old)
+
+and the calculator prints 13763753091226345046315979581580902400000000.
+Notice that numbers can be very large. (There is a practical limit
+of several thousand digits before calculations become too slow.)
+
+The calculator can calculate transcendental functions, and accept and
+display numbers in real or exponential format. For example, typing:
+
+        config("display", 50)
+        epsilon(1e-50)
+        sin(1)
+
+prints "~.84147098480789650665250232163029899962256306079837".
+
+The calculator also knows about complex numbers, so that typing:
+
+        (2+3i) * (4-3i)
+
+prints "17+6i".