Flint Specification 0.0.1

FlintSpec.txt

Flint: A tiny alternative to excel for visualization and computation.

File Format:
---
	ZIP -> sheet1.csv
	       sheet1.fl

Language
---

1. Arithmetic: 
	7 + 2;
	8 * 5;
	19.1 - 4;
	25.4 / 2.8;
	2.4 ** 2.1;
	x * y + 6;
	
2. Variables
	real x = 0;
	real x = 2.5;
	complex y = 1 + 2i;
	complex y = 2.57 + 3.05i;
	bool b = true;
	bool b = false;
	vec(3) v = [1,2,3];
	mat(2,2) k = [2,3;4,1];

3. Math functions
	sin(x)
	cos(x)
	tan(x)
	cot(x)
	sec(x)
	csc(x)
	abs(x)
	exp(x)
	sgn(x)
	det(x)
	inv(x)
	hmt(x)
	tnp(x)
	cng(x)
	log(base,x)
	avg(x)
	var(x)
	cov(x,y)
	stddev(x)
	rand()
	
4. Matrix/Vector Addressing
	
	mat(4,4) matrix = [1,0,0,0;0,1,0,0;0,0,1,0;0,0,0,1];
	
	/* Return nth row */
	row(matrix, n)
	/* Return nth column */
	col(matrix, n)
	/* Return size of matrix, is a vec(2) */
	vec(2) = matrix.length();
	/* Return size of row */
	real row_size = row(matrix, n).length();
	/* Take certain element */
	real m = matrix[n][m]
	
	An nth vector is just a nx1 matrix.

5. Functions
	matrix(4,4) Identity4(real scale)
	{
		matrix(4,4) result;
		for(real i = 0; i < 4; i++)
		{
			result[i][i] = scale;
		}
		return scale;
	}

	matrix(4,4) new_mat = Identity4(1.0);

6. Loops
	for & while.
	for(init_statement; compare; increment)
	{
		/* Do Stuff */
	}
	
	while(comparison)
	{
		/* Do Stuff */
	}

7. Addressing the table
	/* Sets the first Price Column to 12.50 */
	$TABLE["Price"][0] = 12.50;
	
	Instead of strings you can also use indexing
	
	$TABLE[1][0] = 0.0;
	$TABLE[2][5] = 3.0 + 5i;
	
	/* Called every time the table is loaded */
	void OnTableLoad()
	{
		$TABLE["Total Amount"][0] = 0.0;
		for(real i = 0; i < $TABLE["Goods"].length(); i++)
		{
			$TABLE["Total Amount"][0] += $TABLE["Goods"][i] * $TABLE["Qty"][i];
		}
	}
	
	/* Can take and assign data using matrices and vectors as well */
	matrix(8,8) matrix = $TABLE[0:8][0:8]
	$TABLE[0:8][0:8] = matrix;
	vec(5) v5 = $TABLE["Price"][0:5];
	vec(7) v7 = $TABLE[3][0:7];
	
	vec(8) vector8 = [1,2,3,4,5,6,7,8];
	$TABLE["Price"][3:11] = vector8;

8. Plotting Charts
	All plots will open new windows. For now, 2D plots only.
	
	plot_id = plot(title, xlabel, ylabel, xmin, ymin)
	scatter(id, x, y, color)
	line(id, x, y, color)
	bar(id, labels, freqs, color)