Add schemeNumber part of javascript-bignum library

javascript-bignum/javascript-bignum.d.ts

@@ -0,0 +1,53 @@
+// Type definitions for javascript-bignum
+// Project: https://github.com/jtobey/javascript-bignum
+// Definitions by: Nathan Shively-Sanders <https://github.com/sandersn> 
+// Definitions: https://github.com/borisyankov/DefinitelyTyped
+// Documentation: http://john-edwin-tobey.org/Scheme/javascript-bignum/docs/files/schemeNumber-js.html
+
+// This version only includes typing for schemeNumber, not the full library
+declare type SchemeOperator = (...args: (string | SchemeNumber | number)[]) => SchemeNumber;
+declare var VERSION: number[];
+declare function raise(conditionType: string, message: string, ...irritants: any[]): void;
+declare var maxIntegerDigits: number;
+declare interface SchemeFn {
+	[opname: string]: SchemeOperator;
+	inexact: SchemeOperator;
+	exact: SchemeOperator;
+	max: SchemeOperator;
+	min: SchemeOperator;
+	abs: SchemeOperator;
+	div: SchemeOperator;
+	mod: SchemeOperator;
+	div0: SchemeOperator;
+	mod0: SchemeOperator;
+	gcd: SchemeOperator;
+	lcm: SchemeOperator;
+	numerator: SchemeOperator;
+	denominator: SchemeOperator;
+	floor: SchemeOperator;
+	ceiling: SchemeOperator;
+	truncate: SchemeOperator;
+	round: SchemeOperator;
+	rationalize: SchemeOperator;
+	exp: SchemeOperator;
+	log: SchemeOperator;
+	sin: SchemeOperator;
+	cos: SchemeOperator;
+	tan: SchemeOperator;
+	asin: SchemeOperator;
+	acos: SchemeOperator;
+	atan: SchemeOperator;
+	sqrt: SchemeOperator;
+	expt: SchemeOperator;
+	magnitude: SchemeOperator;
+	angle: SchemeOperator;
+}
+declare interface SchemeNumber {
+	(value: string | number): SchemeNumber;
+	toString(radix: number): string;
+	toFixed(fractionDigits: number): string;
+	toExponential(fractionDigits: number): string;
+	toPrecision(precision: number): string;
+	fn: SchemeFn;
+}
+declare var SchemeNumber: SchemeNumber;