Calculator

Essential Question: How can I use operators and variables to make calculations?

Mastery Objectives:

• SWBAT create a conditional statement.

• SWBAT create variables.

• SWBAT create formulas using operators.

Do Now: Write a JavaScript program to create a variable to store your first name and another variable to create to store your last name. Print your name with a space between the first name and last name to the console. Create a template literal to write to the console a sentence using your first name.

Do Now2: Create two variables:  age and dogYears. Set age equal to your age. Multiply the age variable by 7 to calculate dog years. Write dogYears to the console.

Directions: Using the code from Tip Calculator, create a simple calculator using the operators +, -, *, /, mod %, and Math.sqrt. Print to the console. Look at the functions in the Math Library below. Select 3 functions and add them to your calculator.

Method          Description

abs(x)            Returns the absolute value of x

acos(x)          Returns the arccosine of x, in radians

acosh(x)          Returns the hyperbolic arccosine of x

asin(x)          Returns the arcsine of x, in radians

asinh(x)           Returns the hyperbolic arcsine of x

atan(x)          Returns the arctangent of x as a numeric value between -PI/2 and PI/2 radians

atan2(y, x)          Returns the arctangent of the quotient of its arguments

atanh(x)          Returns the hyperbolic arctangent of x

cbrt(x)          Returns the cubic root of x

ceil(x)          Returns x, rounded upwards to the nearest integer

clz32(x)          Returns the number of leading zeros in a 32-bit binary representation of x

cos(x)          Returns the cosine of x (x is in radians)

cosh(x)          Returns the hyperbolic cosine of x

exp(x)          Returns the value of Ex

expm1(x)          Returns the value of Ex minus 1

floor(x)          Returns x, rounded downwards to the nearest integer

fround(x)          Returns the nearest (32-bit single precision) float representation of a number

log(x)          Returns the natural logarithmof x

log10(x)          Returns the base-10 logarithm of x

log1p(x)          Returns the natural logarithm of 1 + x

log2(x)          Returns the base-2 logarithm of x

max(x, y, z, ..., n)          Returns the number with the highest value

min(x, y, z, ..., n)          Returns the number with the lowest value

pow(x, y)          Returns the value of x to the power of y

random()          Returns a random number between 0 and 1

round(x)          Rounds x to the nearest integer

sign(x)          Returns the sign of a number (checks whether it is positive, negative or zero)

sin(x)          Returns the sine of x (x is in radians)

sinh(x)          Returns the hyperbolic sine of x

sqrt(x)          Returns the square root of x

tan(x)          Returns the tangent of an angle

tanh(x)          Returns the hyperbolic tangent of a number

trunc(x)          Returns the integer part of a number (x)