Sharp PC1211/TRS80 PC1 Software

03212021, 03:38 PM
Post: #13




RE: Sharp PC1211/TRS80 PC1 Software
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, basee 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 (sidesideside, sideangleside, angleside 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. 

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