ZYAC (Yet Another Calculator) program is a scientific, algebraic
operating system calculator for IBM-PCs and Zenith Z-100 computers.
In addition to basic math functions, features of ZYAC include:
trigonometric functions (to include hyperbolic), log (natural and
common), exponential function, power function, factorial, square root,
English-to-metric conversions, statistics (summation, mean, variance,
and standard deviation), and others.  ZYAC also contains two memory
registers and two programmable function keys.  The values stored in the
memory registers and the equations programmed in the function keys may
be saved to disk files for use in initializing ZYAC.


Files contained on the ZYAC disk:

README.DOC   - Information about changes since last version of ZYAC.
SAMP.ZYC     - Sample ZYAC initialization file.
ZYACIBM.COM  - IBM-PC version of ZYAC.
ZYACZ100.COM - Zenith Z-100 version of ZYAC.
ZYAC.DOC     - Complete manual describing how to use ZYAC.