Math
This documentation covers fundamental math operations including addition, subtraction, multiplication, division, remainders, minimum and maximum values, square roots, rounding, absolute values, and generating random numbers.
Adding/Subtracting/Multiplying/Dividing Two Values
0 + 0
{"blocks":"<xml xmlns=\"https://developers.google.com/blockly/xml\"><variables><variable>count</variable></variables><block type=\"math_arithmetic\" disabled=\"true\" x=\"67\" y=\"68\"><field name=\"OP\">ADD</field><value name=\"A\"><shadow type=\"math_number\" disabled=\"true\"><field name=\"NUM\">0</field></shadow></value><value name=\"B\"><shadow type=\"math_number\" disabled=\"true\"><field name=\"NUM\">0</field></shadow></value></block></xml>"}This is used to return the sum/difference/product/quotient of two numbers.
Parameters: Condition:
- Number (Default: 0)
- Operator: + (Default)/-/×/÷/**
Output: Number
Sample code:
{"blocks":"<xml xmlns=\"https://developers.google.com/blockly/xml\"><variables><variable>count</variable></variables><block type=\"pxt-on-start\" x=\"0\" y=\"0\"><statement name=\"HANDLER\"><block type=\"variables_set\"><field name=\"VAR\">count</field><value name=\"VALUE\"><shadow type=\"math_number\"><field name=\"NUM\">3</field></shadow></value><next><block type=\"basic_consoleLogNum\"><value name=\"num\"><block type=\"math_arithmetic\"><field name=\"OP\">ADD</field><value name=\"A\"><shadow type=\"math_number\"><field name=\"NUM\">0</field></shadow><block type=\"variables_get\"><field name=\"VAR\">count</field></block></value><value name=\"B\"><shadow type=\"math_number\"><field name=\"NUM\">2</field></shadow></value></block></value></block></next></block></statement></block></xml>"}The output:
Setting a Number
0
{"blocks":"<xml xmlns=\"https://developers.google.com/blockly/xml\"><variables><variable>count</variable></variables><block type=\"math_number\" disabled=\"true\" x=\"-22\" y=\"247\"><field name=\"NUM\">0</field></block></xml>"}This block is used to set the value to number or decimal number.
Parameters: Condition: Number (Default: 0)
Output: Number
Sample code:
{"blocks":"<xml xmlns=\"https://developers.google.com/blockly/xml\"><variables><variable>count</variable></variables><block type=\"pxt-on-start\" x=\"0\" y=\"0\"><statement name=\"HANDLER\"><block type=\"variables_set\"><field name=\"VAR\">count</field><value name=\"VALUE\"><shadow type=\"math_number\"><field name=\"NUM\">6.1</field></shadow></value><next><block type=\"basic_consoleLogNum\"><value name=\"num\"><shadow type=\"math_number\"><field name=\"NUM\">0</field></shadow></value></block></next></block></statement></block></xml>"}The output:
Showing Remainder Between Two Numbers
Reminder of 0 ÷ 1
{"blocks":"<xml xmlns=\"https://developers.google.com/blockly/xml\"><variables><variable>count</variable></variables><block type=\"math_modulo\" disabled=\"true\" x=\"-22\" y=\"292\"><value name=\"DIVIDEND\"><shadow type=\"math_number\" disabled=\"true\"><field name=\"NUM\">0</field></shadow></value><value name=\"DIVISOR\"><shadow type=\"math_number\" disabled=\"true\"><field name=\"NUM\">1</field></shadow></value></block></xml>"}This block is used to show the remainder between two values.
Parameters: Condition: Number (Default: 0)
Output: Number
Sample code:
{"blocks":"<xml xmlns=\"https://developers.google.com/blockly/xml\"><variables><variable>count</variable></variables><block type=\"pxt-on-start\" x=\"0\" y=\"0\"><statement name=\"HANDLER\"><block type=\"variables_set\"><field name=\"VAR\">count</field><value name=\"VALUE\"><shadow type=\"math_number\"><field name=\"NUM\">3</field></shadow></value><next><block type=\"basic_consoleLogNum\"><value name=\"num\"><block type=\"math_modulo\"><value name=\"DIVIDEND\"><shadow type=\"math_number\"><field name=\"NUM\">0</field></shadow><block type=\"variables_get\"><field name=\"VAR\">count</field></block></value><value name=\"DIVISOR\"><shadow type=\"math_number\"><field name=\"NUM\">1</field></shadow></value></block></value></block></next></block></statement></block></xml>"}The output:
Finding the Minimum Values
Min of 0 and 0
{"blocks":"<xml xmlns=\"https://developers.google.com/blockly/xml\"><variables><variable>count</variable></variables><block type=\"math_op2\" disabled=\"true\" x=\"-22\" y=\"382\"><field name=\"op\">min</field><value name=\"x\"><shadow type=\"math_number\" disabled=\"true\"><field name=\"NUM\">0</field></shadow></value><value name=\"y\"><shadow type=\"math_number\" disabled=\"true\"><field name=\"NUM\">0</field></shadow></value></block></xml>"}This block is used to take the smaller value between two numbers.
Parameters: Condition: Number (Default: 0)
Output: Number
Sample code:
{"blocks":"<xml xmlns=\"https://developers.google.com/blockly/xml\"><variables><variable>count</variable></variables><block type=\"pxt-on-start\" x=\"0\" y=\"0\"><statement name=\"HANDLER\"><block type=\"variables_set\"><field name=\"VAR\">count</field><value name=\"VALUE\"><shadow type=\"math_number\"><field name=\"NUM\">3</field></shadow></value><next><block type=\"basic_consoleLogNum\"><value name=\"num\"><block type=\"math_op2\"><field name=\"op\">min</field><value name=\"x\"><block type=\"variables_get\"><field name=\"VAR\">count</field></block></value><value name=\"y\"><shadow type=\"math_number\"><field name=\"NUM\">4</field></shadow></value></block></value></block></next></block></statement></block></xml>"}The output:
Finding the Maximum Values
Max of 0 and 0
{"blocks":"<xml xmlns=\"https://developers.google.com/blockly/xml\"><variables><variable>count</variable></variables><block type=\"math_op2\" disabled=\"true\" x=\"-22\" y=\"427\"><field name=\"op\">max</field><value name=\"x\"><shadow type=\"math_number\" disabled=\"true\"><field name=\"NUM\">0</field></shadow></value><value name=\"y\"><shadow type=\"math_number\" disabled=\"true\"><field name=\"NUM\">0</field></shadow></value></block></xml>"}This block is used to take the larger value between two numbers.
Parameters: Condition: Number (Default: 0)
Output: Number
Sample code:
{"blocks":"<xml xmlns=\"https://developers.google.com/blockly/xml\"><variables><variable>count</variable></variables><block type=\"pxt-on-start\" x=\"0\" y=\"0\"><statement name=\"HANDLER\"><block type=\"variables_set\"><field name=\"VAR\">count</field><value name=\"VALUE\"><shadow type=\"math_number\"><field name=\"NUM\">3</field></shadow></value><next><block type=\"basic_consoleLogNum\"><value name=\"num\"><block type=\"math_op2\"><field name=\"op\">max</field><value name=\"x\"><block type=\"variables_get\"><field name=\"VAR\">count</field></block></value><value name=\"y\"><shadow type=\"math_number\"><field name=\"NUM\">4</field></shadow></value></block></value></block></next></block></statement></block></xml>"}The output:
Taking the Square Root
Square Root
{"blocks":"<xml xmlns=\"https://developers.google.com/blockly/xml\"><variables><variable>count</variable></variables><block type=\"math_op3\" disabled=\"true\" x=\"-22\" y=\"472\"><value name=\"x\"><shadow type=\"math_number\" disabled=\"true\"><field name=\"NUM\">0</field></shadow></value></block></xml>"}This block is used to take the square root of the value.
Parameters: Condition:
- Number (Default: 0)
- Square root (Default)/sin/cos/tan/atan2/integer ÷/integer ×
Output: Number
Sample code:
{"blocks":"<xml xmlns=\"https://developers.google.com/blockly/xml\"><block type=\"pxt-on-start\" x=\"0\" y=\"0\"><statement name=\"HANDLER\"><block type=\"basic_consoleLogNum\"><value name=\"num\"><block type=\"math_op3\"><value name=\"x\"><shadow type=\"math_number\"><field name=\"NUM\">-10</field></shadow></value></block></value></block></statement></block></xml>"}The output:
Converting the Number to an Approximate Value
Round
{"blocks":"<xml xmlns=\"https://developers.google.com/blockly/xml\"><block type=\"math_js_round\" disabled=\"true\" x=\"-22\" y=\"607\"><field name=\"OP\">round</field><value name=\"ARG0\"><shadow type=\"math_number\" disabled=\"true\"><field name=\"NUM\">0</field></shadow></value></block></xml>"}This block is used to replace the number with an approximate value. If the fractional part is more than one half, the number will increase.
Parameters: Condition:
- Number (Default: 0)
- Square root (Default)/sin/cos/tan/atan2/integer ÷/integer ×
Output: Number
Sample code:
{"blocks":"<xml xmlns=\"https://developers.google.com/blockly/xml\"><block type=\"pxt-on-start\" x=\"0\" y=\"0\"><statement name=\"HANDLER\"><block type=\"basic_consoleLogNum\"><value name=\"num\"><block type=\"math_js_op\"><mutation xmlns=\"http://www.w3.org/1999/xhtml\" op-type=\"unary\"></mutation><field name=\"OP\">sqrt</field><value name=\"ARG0\"><shadow type=\"math_number\"><field name=\"NUM\">4</field></shadow></value></block></value></block></statement></block></xml>"}The output:
Changing the Number to Absolute Value
Absolute of 0
{"blocks":"<xml xmlns=\"https://developers.google.com/blockly/xml\"><block type=\"math_op3\" disabled=\"true\" x=\"-22\" y=\"472\"><value name=\"x\"><shadow type=\"math_number\" disabled=\"true\"><field name=\"NUM\">0</field></shadow></value></block></xml>"}This block is used to make the value of the number to absolute value.
Parameters: Condition: Number (Default: 0)
Output: Number
Sample code:
{"blocks":"<xml xmlns=\"https://developers.google.com/blockly/xml\"><block type=\"pxt-on-start\" x=\"0\" y=\"0\"><statement name=\"HANDLER\"><block type=\"basic_consoleLogNum\"><value name=\"num\"><block type=\"math_op3\"><value name=\"x\"><shadow type=\"math_number\"><field name=\"NUM\">-10</field></shadow></value></block></value></block></statement></block></xml>"}The output:
Choosing the Random Value
Pick Random 0 to 10
{"blocks":"<xml xmlns=\"https://developers.google.com/blockly/xml\"><block type=\"device_random\" disabled=\"true\" x=\"-22\" y=\"652\"><value name=\"min\"><shadow type=\"math_number\" disabled=\"true\"><field name=\"NUM\">0</field></shadow></value><value name=\"limit\"><shadow type=\"math_number\" disabled=\"true\"><field name=\"NUM\">10</field></shadow></value></block></xml>"}This block is used to choose the random number between the range.
Parameters: Condition: Number (Default: 0)
Output: Number
Sample code:
{"blocks":"<xml xmlns=\"https://developers.google.com/blockly/xml\"><block type=\"pxt-on-start\" x=\"0\" y=\"0\"><statement name=\"HANDLER\"><block type=\"basic_consoleLogNum\"><value name=\"num\"><block type=\"device_random\"><value name=\"min\"><shadow type=\"math_number\"><field name=\"NUM\">0</field></shadow></value><value name=\"limit\"><shadow type=\"math_number\"><field name=\"NUM\">10</field></shadow></value></block></value></block></statement></block></xml>"}The output:
Table of Content
