This app allows you to perform the following calculations at the textbook level for middle school and high school mathematics.

・Development
・Factor analysis
·equation
・Inequalities

This app is not a high-performance, multi-functional scientific calculator app, so calculations other than those listed above (for example, calculations for university mathematics, professional mathematics, etc.) may not be possible in many cases, so we appreciate your understanding in advance.

In addition to this app "①", we have released another similar app "②".

① Text calculator 1 [graphs, expansions, factorization, equations, inequalities]
② Character expression calculator 2 [expansion/factorization/equation/inequality]

The main differences between ① and ② are as follows.

Deployment ① ○ ② ○
Factorization ① ○ ② ○
Equation ① ○ ② ○
Inequality ① ○ ② ○

Graph ① ○ ② ×
Time ① ○ ② ×
Unit ① ○ ② ×
N-ary system ① ○ ② ×

SymPy ① × ② ○
Double radical ① × ② ○
Number sequence ① × ② ○
Differential and integral calculus ① × ② ○