add subtract multiply divide fractions

Tags:. SH floating-point separators should calculate bar integer ACE SpecialUse Shell to write a simple calculator, you can implement add, subtract, multiply, divide operation, if the script name is 1.sh, execute example:./1.sh 1 + 2#!/bin/bashif[$#-ne3]thenecho "The number of parameters should be 3, for example: $01 +

　　Add, subtract, multiply and divide functions for number type to solve the problem of the accuracy of the addition result of float

Use Python to perform mathematical arithmetic operations for xiaobao _ arithmetic algorithm exercise program (add, subtract, multiply, divide) Recently fascinated by Python The math calculation exercise program for xiaobao using Python (four arithmetic operations added in January 2015 )! The oral computing game for xi

1. Floating-point number addition operationfunction Numadd (arg1, arg2) {var r1, R2, M;try {R1 = Arg1.tostring (). Split (".") [1].length} catch (e) {R1 = 0}try {r2 = arg2.tostring (). Split (".") [1].length} catch (e) {r2 = 0}m = Math.pow (Ten, Math.max (R1, r2));Return (ARG1 * m + arg2 * m)/m;}2. Floating-point number subtraction operationfunction Floatsub (arg1, arg2) {var r1, R2, M, N;try {R1 = Arg1.tostring (). Split (".") [1].length} catch (e) {R1 = 0}try {r2 = arg2.tostring (). Split ("."

7.4 Write methods to implement the multiply, subtract, and divide operations for integers. Use only the Add operator.This problem allows us to multiply addition and division, and specifies that only addition can be used. So let's first look at how to use addition to achieve

; returnnewMatrix3; } //matrix and scalar multiplication PublicMyMatrix3 scalarmultiply (MyMatrix3 A,intScale ) {MyMatrix3 newMatrix3=NewMyMatrix3 (); NEWMATRIX3.M11= A.m11 *Scale ; NEWMATRIX3.M12= A.m12 *Scale ; NEWMATRIX3.M12= A.m12 *Scale ; Newmatrix3.m21= A.m21 *Scale ; NEWMATRIX3.M22= A.m22 *Scale ; NEWMATRIX3.M23= A.M23 *Scale ; Newmatrix3.m21= A.m21 *Scale ; NEWMATRIX3.M22= A.m22 *Scale ; NEWMATRIX3.M23= A.M23 *Scale ; returnnewMatrix3; } //matrix multiplication

the retention pattern is, rounding or otherwise, you can choose for yourself.4: For the general Add, subtract, multiply method of decimal format is as follows:BigDecimal mdata = new BigDecimal ("9.655"). Setscale (2, bigdecimal.round_half_up); 5, compared with 0Standard practice BigDecimal big_decimal = new BigDecimal ("3");int R=big_decimal.compareto (Bigdecima

Using Double.valueof (str) to convert STR to double type, 2 numbers can be multiplied directly, and the addition and subtraction operationsString a= "24.3";String b= "3";Double Addresult=double.valueof (a) +double.valueof (b);Double Jianresult=double.valueof (a)-double.valueof (b);Double Mutiresult=double.valueof (a) *double.valueof (b);BigDecimal c=new BigDecimal (Mutiresult);2 or more numeric variables in Java directly multiply