From 26105034da4fcce7ac883c899d781f016559310d Mon Sep 17 00:00:00 2001
From: ruki <waruqi@gmail.com>
Date: Thu, 8 Nov 2018 00:38:48 +0800
Subject: switch to vuepress

---
 .../math-expression-evaluator/src/math_function.js | 120 +++++++++++++++++++++
 1 file changed, 120 insertions(+)
 create mode 100755 node_modules/math-expression-evaluator/src/math_function.js

(limited to 'node_modules/math-expression-evaluator/src/math_function.js')

diff --git a/node_modules/math-expression-evaluator/src/math_function.js b/node_modules/math-expression-evaluator/src/math_function.js
new file mode 100755
index 00000000..18d46ed6
--- /dev/null
+++ b/node_modules/math-expression-evaluator/src/math_function.js
@@ -0,0 +1,120 @@
+	var Mexp=function(parsed){
+		this.value=parsed;
+
+	};
+
+	Mexp.math={
+		isDegree:true, //mode of calculator
+		acos:function(x){
+			return (Mexp.math.isDegree?180/Math.PI*Math.acos(x):Math.acos(x));
+		},
+		add:function(a,b){
+			return a+b;
+		},
+		asin:function(x){
+			return (Mexp.math.isDegree?180/Math.PI*Math.asin(x):Math.asin(x));
+		},
+		atan:function(x){
+			return (Mexp.math.isDegree?180/Math.PI*Math.atan(x):Math.atan(x));
+		},
+		acosh:function(x){
+			return Math.log(x+Math.sqrt(x*x-1));
+		},
+		asinh:function(x){
+			return Math.log(x+Math.sqrt(x*x+1));
+		},
+		atanh:function(x){
+			return Math.log((1+x)/(1-x));
+		},
+		C:function(n,r){
+			var pro=1,other=n-r,choice=r;
+			if(choice<other){
+			choice=other;
+			other=r;
+			}
+			for(var i=choice+1;i<=n;i++)
+				pro*=i;
+			return pro/Mexp.math.fact(other);
+		},
+		changeSign:function(x){
+			return -x;
+		},
+		cos:function(x){
+			if(Mexp.math.isDegree)x=Mexp.math.toRadian(x);
+			return Math.cos(x);
+		},
+		cosh:function(x){
+			return (Math.pow(Math.E,x)+Math.pow(Math.E,-1*x))/2;
+		},
+		div:function(a,b){
+		return a/b;
+		},
+		fact:function(n) {
+		if(n%1!==0)return "NAN";
+			var pro=1;
+			for(var i=2;i<=n;i++)
+				pro*=i;
+			return pro;
+		},
+		inverse:function(x){
+			return 1/x;
+		},
+		log:function(i){
+			return Math.log(i)/Math.log(10);
+		},
+		mod:function(a,b){
+		return a%b;
+		},
+		mul:function(a,b){
+		return a*b;
+		},
+		P:function(n,r){var pro=1;
+			 for(var i=Math.floor(n)-Math.floor(r)+1;i<=Math.floor(n);i++)
+					pro*=i;
+					return pro;
+
+		},
+		Pi:function(low,high,ex){
+			var pro=1;
+			for(var i=low;i<=high;i++){
+				pro*=Number(ex.postfixEval({n:i}));
+			}
+			return pro;
+		},
+		pow10x:function(e){
+			var x=1;
+			while(e--){x*=10;}
+			return x;
+		},
+		sigma:function(low,high,ex){
+			var sum=0;
+			for(var i=low;i<=high;i++){
+				sum+=Number(ex.postfixEval({n:i}));
+			}
+			return sum;
+		},
+		sin:function(x){
+			if(Mexp.math.isDegree)x=Mexp.math.toRadian(x);
+			return Math.sin(x);
+		},
+		sinh:function(x){
+			return (Math.pow(Math.E,x)-Math.pow(Math.E,-1*x))/2;
+		},
+		sub:function(a,b){
+		return a-b;
+		},
+		tan:function(x){
+			if(Mexp.math.isDegree)x=Mexp.math.toRadian(x);
+			return Math.tan(x);
+		},
+		tanh:function(x){
+			return Mexp.sinha(x)/Mexp.cosha(x);
+		},
+		toRadian:function(x){
+			return x*Math.PI/180;
+		}
+	};
+	Mexp.exception=function(message){
+		this.message=message;
+	};
+    module.exports=Mexp;
\ No newline at end of file
-- 
cgit v1.2.3