This section covers various references I found useful while going through the book.

• mathisfun: Slopes
• Rational exponents
• Rules for exponent
• Gnuplot mini manual
• Gnuplot + Latex based titles
• GNU Octave Symbolic package wiki
• GNU Octave Symbolic package: function reference
• GNU Octave Symbolic package: vpasolve
• Trignometry identity reference
• Sagemath: Calculus Tutorial
• SageMath for Calculus