## DBIG **Kind**: global class **this**: {DBIG} * [DBIG](#DBIG) * [new DBIG()](#new_DBIG_new) * _instance_ * [.zero()](#DBIG+zero) ⇒ * [.copy()](#DBIG+copy) ⇒ * [.hcopy()](#DBIG+hcopy) ⇒ * [.norm()](#DBIG+norm) ⇒ * [.muladd()](#DBIG+muladd) * [.shr()](#DBIG+shr) ⇒ * [.shl()](#DBIG+shl) ⇒ * [.cmove()](#DBIG+cmove) * [.add()](#DBIG+add) ⇒ * [.sub()](#DBIG+sub) ⇒ * [.nbits()](#DBIG+nbits) ⇒ * [.toString()](#DBIG+toString) ⇒ * [.mod()](#DBIG+mod) ⇒ * [.div()](#DBIG+div) ⇒ * [.split()](#DBIG+split) ⇒ * _static_ * [.comp()](#DBIG.comp) ⇒ ### new DBIG() General purpose Constructor ### dbiG.zero() ⇒ set to zero **Kind**: instance method of [DBIG](#DBIG) **Returns**: BIG number **this**: {DBIG} ### dbiG.copy() ⇒ set to b **Kind**: instance method of [DBIG](#DBIG) **Returns**: DBIG number **this**: {DBIG} **Parameter**: b DBIG number ### dbiG.hcopy() ⇒ copy from ctx.BIG **Kind**: instance method of [DBIG](#DBIG) **Returns**: DBIG number **this**: {DBIG} **Parameter**: b BIG number ### dbiG.norm() ⇒ normalise DBIG - force all digits < 2^BASEBITS **Kind**: instance method of [DBIG](#DBIG) **Returns**: DBIG number **this**: {DBIG} ### dbiG.muladd() this[i]+=x*y+c, and return high part **Kind**: instance method of [DBIG](#DBIG) **this**: {DBIG} ### dbiG.shr() ⇒ General shift right by k bits **Kind**: instance method of [DBIG](#DBIG) **Returns**: BIG number **this**: {DBIG} **Parameter**: k Number of bits to shift ### dbiG.shl() ⇒ General shift left by k bits **Kind**: instance method of [DBIG](#DBIG) **Returns**: BIG number **this**: {BIG} **Parameter**: k Number of bits to shift ### dbiG.cmove() Conditional move of BIG depending on d using XOR - no branches **Kind**: instance method of [DBIG](#DBIG) **this**: {DBIG} **Parameter**: b DBIG number **Parameter**: d DBIG number ### dbiG.add() ⇒ Sum two DBIG mumbers **Kind**: instance method of [DBIG](#DBIG) **Returns**: this+=x **this**: {DBIG} **Parameter**: x DBIG object ### dbiG.sub() ⇒ Subtract DBIG from one another **Kind**: instance method of [DBIG](#DBIG) **Returns**: this-=x **this**: {DBIG} **Parameter**: x BIG object ### dbiG.nbits() ⇒ length in bits **Kind**: instance method of [DBIG](#DBIG) **Returns**: The number of bigs in DBIG object **this**: {DBIG} ### dbiG.toString() ⇒ Convert to string **Kind**: instance method of [DBIG](#DBIG) **Returns**: string representation of a BIG number **this**: {DBIG} ### dbiG.mod() ⇒ reduces this DBIG mod a ctx.BIG, and returns the ctx.BIG **Kind**: instance method of [DBIG](#DBIG) **Returns**: BIG object **this**: {DBIG} ### dbiG.div() ⇒ this/=c **Kind**: instance method of [DBIG](#DBIG) **Returns**: DBIG number **this**: {DBIG} **Paramter**: c divisor ### dbiG.split() ⇒ split this DBIG at position n, return higher half, keep lower half **Kind**: instance method of [DBIG](#DBIG) **Returns**: lower half BIG number **this**: {DBIG} **Paramter**: n Position to splitdivisor ### DBIG.comp() ⇒ Compare a and b **Kind**: static method of [DBIG](#DBIG) **Returns**: 0 if a==b, -1 if ab **this**: {DBIG} **Parameter**: a DBIG number (normalised) **Parameter**: b DBIG number (normalised