TOff

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TOff is a utility that can be very handy for those wishing to leave their computer unattended for some time before automatically turning it off. TOff can turn off your computer (or hibernate, when possible) at a certain day and time, with the seconds discrepancy. TOff can shutdown almost every Windows operating system that has Advanced Power Management (APM) enabled, and also provides a log for the last operation to confirm shut-off times. The source code for this application is also available for download.

  • Cost: Free
  • Platforms: Windows

Algebra Linear Functions in C

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Algebra linear functions in C (fractions). Basic matrices functions : addm, subm, multm, powm, smultm, transpose, trace, det, minor, mminor, cofactor, mcofactor, adjoint, inverse, inverse(gaussjordan), gauss, gaussjordan, LU. Basic vectors functions in R**n : norm, distance, innerproduct,coldim, rowdim, rank, nullity, leastsqrs. With random values. Save your work in a text file.

  • Cost: Freeware
  • Version: 07
  • Platforms: dos, windows, linux

Calculus Derivative Normal

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Application of the derivative : The normal. You can see the result into Gnuplot. Draw the normal. Animate the normal. Find the intersection points of the normal with the x-y axis. Find the length of the normal from P to the x axis. Find the length of the normal from P to the y axis. Find the length of the under normal.

  • Cost: Freeware
  • Version: 03
  • Platforms: dos windows linux

Calculus Derivative Tangent

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Application of the derivative: The tangent. You can see the result in Gnuplot. Draw the tangent. Animate the tangent. Find the intersection points of the tangent with the x-y axis. Find the length of the tangent from P to the x axis. Find the length of the tangent from P to the y axis. Find the length of the under tangent.

  • Cost: Freeware
  • Version: 01
  • Platforms: dos windows linux