Sharp PC-1211/TRS-80 PC-1 Software

[Hollerith]

List of what is on Engineering Math I to IV.

I am happy to convert the programs from cassette to text. Once the audio input levels have been set it does not take long and the wav2bin program of pocket tools runs in a few seconds. Scanning the manuals takes longer but only I can do this.

Just need to decide where to put the programs.

Engineering Math I consists of three programs:

GAUSS Gaussian matrix reduction
MATMUL Matrix multiplication
MATINV Matrix inversion

GAUSS can complete a Guassian reduction of a
square matrix from 3 x 3 to 10 x 10, display the
reduced matrix, and calculate its determinant.

MATMUL will multiply an I x J matrix by a J x K
matrix, displaying an I x K matrix as the product.
IJ + JK must be less than or equal to 108.

MATlNV will calculate the inverse of a square matrix,
from 3x3 to 6x6.


Engineering Math II consists of three programs:

VECTOR Vector arithmetic
COMPLEX Complex arithmetic
ADVMATH Advanced trig and exponentials

VECTOR provides all common vector operations in
three dimensions in both Cartesian and polar
coordinates: addition, subtraction, dot product, cross
product, angle between two vectors, and direct
conversion of a vector between rectangular and polar
coordinate systems. Chain operations are allowed.
The mode may be changed between polar and
rectangular at any point during program execution
without adversely affecting intermediate results.

COMPLEX provides for the most common complex
number arithmetic operations: addition, subtraction,
multiplication, division, calculation of magnitude,
conjugation, base-e logarithms, e to complex powers,
sines, cosines, arc sines, and arc cosines. Chain
operations are allowed.

ADVMATH provides 24 common trig functions in
degree or radian measure. lt also provides logarithms
to any base and an exponentiation function which
can raise negative numbers to positive or integral
negative powers.
At the end of each section of the manual, there is a
description of the program variables. These may be
useful if you want to examine intermediate results.
Use the Backup instructions in Appendix B to make a
working copy of the tape. See Appendix C for
Maintenance instructions.


Engineering Math III consists of two programs:

SIMEQ Linear simultaneous equations
PCALC Polynomial math and calculus

SIMEQ solves systems of up to nine linear
simultaneous equations for all unknowns. It can also
be used to complete a Gaussian reduction of
matrices from 2 x 2 to 9 x 9.

PCALC provides common polynomial functions and
calculus solutions for polynomials to the ninth order.
Included are evaluation of the polynomial at any
point, calculation of an exact derivative at any point,
calculation of an exact integral between any two
points, and Newtonian root search.
At the end of each section of the manual, there is a
description of the program variables. These may be
useful if you want to examine intermediate results.
Use the Backup instructions in Appendix B to make a
working copy of this tape. See Appendix C for
Maintenance instructions.


Engineering Math IV consists of one program:
TRIANG.

TRIANG will solve for the three common unknown
triangles (side-side-side, side-angle-side, angle-side-
angle) and also can solve from three Cartesian
coordinates. TRIANG solves for all sides and angles in
any angular unit (degrees, radians, or grads),
calculates area, and tests for equilateral, right,
lsoscoles, obtuse, and scalene properties.
At the end of each section of the manual, there is a
description of the program variables. These may be
useful if you want to examine intermediate results.
Use the Backup instructions in Appendix B to make a
working copy of this tape. See Appendix C for
Maintenance instructions.