A quick prototyping environment built with node with tools for math homework.
This project is self-contained and does not need to be compiled. Place it wherever you'd like.
To install, run the INSTALL file.
Or optionally run npm install.
Run the START file to open the workspace in Sublime Text and begin watching for code changes with gulp.
Optionally you can open workspace.js in whichever editor you'd like and watch / run it by running gulp
from the node-workbench directory.
This is where most of your code should go. The only line required in this file is require('./utils.js');.
Whenever you make a change to this file, code will be run and output displayed in your terminal.
Optinoally you may want to include MODE = DEG or MODE = RAD to indicate whether trigonometiric functions should expect inputs to be in degree or radian.
require('./utils.js');
MODE = DEG;
function f(x) {
return pow(x, 3) - 5 * x + 3;
}
function secant(a, b, n) {
out.cyan(`Finding root of f between ${round(a, 3)} and ${round(b, 3)}.`);
if (!--n) return b;
let c = b - ((b - a) / (f(b) - f(a))) * f(b);
return secant(b, c, n);
}
let root = secant(1, 2, 7);
out.bgBlue(chalk.yellow.bold(`Root found: ${root}`));
A collection of utilities (mostly math) can be found in utils.js.
Functions and variables in utils.js should be made global in order for workspace.js to be able to utilize them.
Here is a list of some of (not all) the functions available via utils.js
out.default(output) Displays output in the default color in the terminal. (Equivilant to console.log)
out.black(output) Displays output in black in the terminal.
out.red(output) Displays output in red in the terminal.
out.green(output) Displays output in green in the terminal.
out.yellow(output) Displays output in yellow in the terminal.
out.blue(output) Displays output in blue in the terminal.
out.magenta(output) Displays output in magenta in the terminal.
out.cyan(output) Displays output in cyan in the terminal.
out.white(output) Displays output in white in the terminal.
out.gray(output) Displays output in gray in the terminal.
out.bgBlack(output) Displays output with a black background in the terminal.
out.bgRed(output) Displays output with a red background in the terminal.
out.bgGreen(output) Displays output with a green background in the terminal.
out.bgYellow(output) Displays output with a yellow background in the terminal.
out.bgBlue(output) Displays output with a blue background in the terminal.
out.bgMagenta(output) Displays output with a magenta background in the terminal.
out.bgCyan(output) Displays output with a cyan background in the terminal.
out.bgWhite(output) Displays output with a white background in the terminal.
out.help() Lists and previews all of the available output colors.
out.reset() Clear the terminal window.
out.array2d(array) Prints a two-dimensional array with a magenta background.
out.array2d(array, precision) Prints a two-dimensional array fixed to precision decimals (for formatting) with a magenta background.
chalk The chalk object for colored output. See chalk for more in depth documentation.
MODE can either be set to RAD or DEG.
cos(x) Cosine evaluated at x. (Affected by MODE) Similar to Math.cos
sin(x) Sine evaluated at x. (Affected by MODE) Similar to Math.sin
tan(x) Tangent evaluated at x. (Affected by MODE) Similar to Math.tan
pow(base, exponent) Equivilant to Math.pow
sqrt(x) Equivilant to Math.sqrt
PI pi π Equivilant to Math.PI
e E Equivilant to Math.E
º Equivilant to π/180. Multiply a value in radians by this to get the value in degrees.
radToDeg(x) Convert value in radian x to degrees.
abs Equivilant to Math.abs
round(x) Equivilant to Math.round
round(x, precision) x rounded to the precision decimal place.
ceil(x) Equivilant to Math.ceil
floor(x) Equivilant to Math.floor
rand() random() Equivilant to Math.random
randRange(min, max) A floating-point, pseudo-random number between min (inclusive) and max (exclusive).
randInt(min, max) A pseudo-random integer between min (inclusive) and max (inclusive).